クレハトレーディング List of Products and Services

The flexible sensors we handle have numerous advantages! - High flexibility - Ultra-thin - Ultra-lightweight - No power supply needed - Easily customizable, etc. This is a document that clearly introduces photos and applications of such flexible sensors. Recently, miniaturization and lightweighting of products have become essential challenges... This may help solve those challenges. *If you are interested, please feel free to download and take a look!

There are piezoelectric materials such as ceramics and quartz, and one of them is "piezo film." This document introduces the basics of "piezo film," including its features and what it can do. We have provided clear explanations using images and diagrams, so please take a look. [Contents] ■ What is piezo film? ■ How is piezo film made? ■ What are the features of piezo film? ■ What can be done with piezo film? ■ Contact information *For more details, please refer to the PDF document or feel free to contact us.

In this document, we introduce examples using the acceleration sensors handled by our company. We have included "prototype examples of acceleration sensors" such as "ultra-compact" and "high-sensitivity" types. Please feel free to download and take a look. [Contents] ■ What can be done with piezo film ■ Examples of acceleration sensors made with piezo film ■ Contact information *For more details, please refer to the PDF document or feel free to contact us.

It looks like just a transparent film. This film, which is thinner than paper, becomes a speaker. You can design it freely in various shapes, taking advantage of its high flexibility, such as curving it to any size, allowing for integration with various interiors. The essential food wrap "Kurewrap" is a product developed by the Kureha Group, and the "transparent film speaker" introduced on this page also features a special film with piezoelectric properties developed by the same group. Would you like to experience the future of transparent film speakers, born from the technology cultivated in the development and manufacturing of Kurewrap? If you are interested, please feel free to reach out!

Piezo sensors are used in various applications due to their characteristics, and I would like to introduce one of them, the "space dust sensor." What mission did the piezo sensor embark on into space? What is piezo? What is a piezo sensor? If you are interested, please feel free to download and take a look!

I've heard of "piezo film" and "piezo film sensor," but I'm not really sure what they are. I'd like to try using them, but how heat-resistant are they? What kind of forces can they detect? Dr. Piezo will answer the frequently asked questions we receive. If you're interested, please take a look!

Piezo films generate electric charge when stimulated mechanically or thermally; they are <polymer piezoelectric films>. What kind of material properties do they have? Please check the materials for detailed information. [Contents] - Piezoelectric constant - Pyroelectric coefficient - Relative permittivity - Elastic modulus - Specific heat capacity at constant volume

A piezo sensor is a sensor developed using piezoelectric films that generate electric charge when stimulated mechanically or thermally. We are pleased to share the electrical characteristics graph of such piezo sensors! [Content of the document] - Linearity concerning load - Temperature characteristics (capacitance and charge sensitivity) Please download the document for more detailed information.

A piezo sensor is a film-type sensor developed using piezo film (polymer piezoelectric film) that generates electric charge when mechanically or thermally stimulated. Since it is a film, it is very thin and flexible! It can be processed into any shape. But what kind of head amplifier circuit should be used? Dr. Piezo will answer such questions. [Document Contents] - Example of a piezo sensor head amplifier circuit Please check the document for more detailed information.

This document introduces the measurement method for the d33 of PVDF piezoelectric materials (piezo films). It explains the measurements and results using deposited films with different piezoelectric constants as experimental samples. For more details, please download and take a look. 【Contents】 ●Introduction ●Experiment ●Future

This is a document explaining the true value of d33 for PVDF piezoelectric materials (piezo films) along with the details of the actual experiments. Please feel free to download and take a look. 【Contents】 ●Introduction ●Experiments ●Future

This is a document explaining the value of d33 and the Poisson's ratio of PVDF piezoelectric materials (piezo films) using illustrations. It is filled with useful information such as sample and lamination images, as well as methods for reducing binding forces. 【Contents】 ■Introduction ■Experiment ■Future Directions

This document introduces the acoustic characteristics of a hydrophone using polymer piezoelectric materials. It clearly presents measurements of receiving sensitivity, as well as comparisons between theoretical and actual values. Please feel free to download and take a look. 【Contents】 ■Introduction ■Measurement of Receiving Sensitivity ■Estimation of Receiving Sensitivity Characteristics ■Comparison with Measured Values ■Conclusion

This document introduces the receiving sensitivity of a cylindrical hydrophone using PVDF piezoelectric materials. It provides a clear explanation using various formulas and diagrams, starting with the sample configuration, theoretical receiving sensitivity, and acoustic sensitivity of the cylindrical element! Please feel free to download and take a look. 【Contents】 ■Introduction ■Sample Configuration ■Receiving Sensitivity Estimation ■Results ■Future Work *For more details, please refer to the PDF document or feel free to contact us.

This document presents the receiving sensitivity of cylindrical hydrophones using PVDF piezoelectric materials. In the section on the structure and sensitivity of cylindrical hydrophones, we introduce the results and future challenges. Explanations are provided using easy-to-understand diagrams and charts. Please feel free to download and take a look. 【Contents】 ■Introduction ■Structure and Sensitivity of Cylindrical Hydrophones ■Future Directions

This document provides a clear introduction to the receiving sensitivity of cylindrical hydrophones using PVDF piezoelectric materials. It includes experimental results along with diagrams of the sample configuration, acoustic sensitivity measurement system, and frequency characteristics of the cylindrical hydrophone. Please feel free to download and take a look. [Contents] ■ Introduction ■ Sample Configuration ■ Results ■ Future Directions

This document introduces the characteristics of acceleration sensors using polymer piezoelectric materials. It includes the sensitivity of acceleration sensors using piezoelectric materials, as well as the design concepts for thin-type velocity sensors. Explanations are provided using diagrams and charts. We are offering this technical document, so please feel free to download and review it. [Contents] ■ Introduction ■ Sensitivity of acceleration sensors using piezoelectric materials ■ Design concepts for thin-type velocity sensors ■ Results ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

This document introduces the influence of film thickness on the frequency characteristics of a speaker with a cylindrical vibrating surface using polymer piezoelectric materials. It explains various measurement results and discussions, including peaks and dips, the effects of transformers, and frequency characteristics, using figures and tables. Please feel free to download and take a look. 【Contents】 ■Introduction ■Experiments and Discussion ■Future Directions *For more details, please refer to the PDF document or feel free to contact us.

This document presents the frequency characteristics and sound radiation mechanisms of a speaker with a cylindrical vibrating surface using polymer piezoelectrics. From the details of the samples, various experiments and discussions, including the wave function of the breathing cylinder and the motion of the surface of the breathing cylinder, are clearly introduced using diagrams and tables. Please feel free to download and take a look. 【Contents】 ■Introduction ■Experiments and Discussions ■Future Directions *For more details, please refer to the PDF document or feel free to contact us.

This document introduces the frequency characteristics of a speaker with a cylindrical vibrating surface using polymer piezoelectric materials. It includes numerous diagrams covering the cylindrical speaker system and its circumferential frequency characteristics, as well as the frequency measurement system and the frequency characteristics of the cylindrical speaker. Please feel free to download and take a look. 【Contents】 ■ Introduction ■ Experiment ■ Results and Discussion ■ Acknowledgments ■ References *For more details, please refer to the PDF document or feel free to contact us.

This document introduces the acoustic sensitivity of hydrophones using polymer piezoelectric materials. It includes explanations of the element configuration of hydrophones and the impedance conversion circuit, as well as the hydrostatic sensitivity measurement method and the frequency characteristics of hydrostatic sensitivity and acoustic sensitivity, presented with figures and tables. We are offering this document for download, so please feel free to download and review it. [Contents] ■ Introduction ■ About Hydrophones ■ Sound Pressure Sensitivity ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

This document introduces the acoustic characteristics of a hydrophone using PVDF piezoelectric materials. It explains various aspects such as the element configuration and the structure of the hydrophone, as well as the measured frequency characteristics of the receiving sensitivity, using various formulas and diagrams. The document is available for distribution. Please feel free to download and take a look. 【Contents】 ■Introduction ■Element configuration and structure of the hydrophone ■Measured frequency characteristics of the receiving sensitivity ■Future prospects

This document introduces the acoustic characteristics of a cylindrical hydrophone using PVDF piezoelectric materials. It explains the behavior of the rubber material inside the cylinder, as well as the materials used in this sample and the results of acoustic sensitivity measurements, using figures and tables. Please be sure to download the PDF and take a look. 【Contents】 ■Introduction ■Sample ■Acoustic Sensitivity Measurement Results ■Future Work

This document introduces the characteristics of an accelerometer using polymer piezoelectric materials. It includes diagrams and photos detailing the sensitivity of the push-pull structure accelerometer and the specifications of the push-pull type accelerometer. Technical materials are available for distribution. Please feel free to download and take a look. 【Contents】 ■Introduction ■Sensitivity of the Push-Pull Structure Accelerometer ■Specifications of the Push-Pull Type Accelerometer ■Results ■Conclusion *For more details, please refer to the PDF document or feel free to contact us.

The MS-10 is a speaker system that uses polymer epoxy film, allowing you to perceive a clear sound even within a soft tonal quality. When electricity is applied to the piezoelectric film, it expands and contracts repeatedly, transforming into a breathing motion of air, creating a sound unique to polymers. Additionally, we also offer the "HPS-T1," which enhances sound quality when combined with other speakers. 【Specifications】 ■ Built-in amplifier: 10W ■ Connection terminal: φ3.5mm stereo mini jack ■ Maximum output: 20W (10W×2) ■ Amplifier input impedance: 9kΩ ■ Playback frequency: 150Hz–24KHz ■ External dimensions (mm): W87×H203×D200 ■ Weight: 1.9kg (with amplifier) 1.8kg ■ Bluetooth standard: Bluetooth v3.0 class2 *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce our piezo film, the "PF Series A5." It is coated with Ag electrodes on both sides. It can be used for initial experimental purposes as well as for monitoring vibrations, impacts, dynamic strain, and more. We offer four different thicknesses. It is a perfect size for those who want to try it out and can be freely cut to your desired dimensions. Please download the catalog to check the electrode area. 【Features】 ■ Coated with Ag electrodes on both sides ■ Can be freely cut for use ■ Suitable for initial experimental purposes ■ For monitoring vibrations, impacts, dynamic strain, etc. ■ Available in four different thicknesses

The "PF Series" is a piezo film coated with Ag electrodes on both sides. You can choose from four different thicknesses and cut it freely for use. It can be used for initial experimental purposes, as well as for monitoring vibrations, shocks, dynamic strain, etc., and for large sensors. Please download the catalog to check the size of the electrode parts. 【Features】 ■ Available in four different thicknesses ■ Coated with Ag electrodes on both sides ■ Can be freely cut for use ■ Compliant with RoHS directives *For more details, please refer to the PDF materials or feel free to contact us.

Introducing the "Piezo Film Sensor." It uses a polymer piezo film with piezoelectric elements to generate voltage in response to small changes such as compression and elongation. It is suitable for monitoring biological signals like body movements and dynamic loads. Additionally, we offer a lineup including the general-purpose "TP series" with lead wires, the shielded "SP series," the wide detection area "LP series," and the ultra-small "MP series." 【Features】 ■ Compliant with RoHS directive ■ Generates voltage in response to small changes such as compression and elongation (strain) ■ Uses piezo film (PVDF) as the piezoelectric element *For more details, please refer to the PDF materials or feel free to contact us.

Our company offers "piezo film sensors" that can be used for monitoring biological signals such as body movement, as well as for monitoring vibrations, shocks, dynamic strain, and dynamic loads. We have successfully developed piezo film sensors into products such as "hydrophones," "ultrasonic probes," "accelerometers," "acoustic pickups," and "pressure sensors." Our expertise, built from years of experience with piezo films, allows us to excel in sensorization of complex shapes and circuit design tailored to the sensors. Our piezo film sensors have a proven track record! They are used in a wide variety of applications, including medical device manufacturers, construction machinery, and automotive manufacturers. They are suitable for monitoring biological signals like body movement, as well as for monitoring vibrations, shocks, dynamic strain, and dynamic loads. *For more details, please download the PDF or feel free to contact us.*

The "SP series" is a low-noise, high-sensitivity piezo film sensor. It generates voltage in response to minute changes such as compression and elongation (strain). It is suitable for monitoring biological signals such as body movements, as well as for monitoring vibrations, impacts, dynamic strain, and dynamic loads. 【Features】 ■ Shielded structure ■ Flexible with a flexible film piezoelectric material ■ Low noise and high sensitivity ■ Uses piezo film (PVDF) as the piezoelectric element ■ Laminated with adhesive PET film of 125μm on one side ■ The electrode part without lamination is coated with a thin coating material, excluding the terminal part *For more details, please refer to the PDF document or feel free to contact us.

The "MP series" is a very small product among piezo film sensors. It is suitable for monitoring biological signals such as body movements, as well as for monitoring vibrations, impacts, dynamic strains, and dynamic loads. 【Features】 ■ Shielded structure ■ Designed for easy use in research applications ■ Extremely small size ■ Uses piezo film (PVDF) as the piezoelectric element *For more details, please refer to the PDF materials or feel free to contact us.

The "LP series" is a piezo film sensor that can accommodate large areas, which is difficult with ceramics, and has a wide detection area. Our company has successfully commercialized piezo film sensors into products such as "hydrophones," "ultrasonic probes," "accelerometers," "acoustic pickups," and "pressure sensors." One of our strengths is the expertise gained from years of handling piezo film, allowing us to excel in circuit design and sensorization for complex shapes. Our piezo film sensors have a solid track record and are used in a variety of fields, including medical device manufacturers, construction machinery, and automotive manufacturers. They are suitable for monitoring dynamic loads such as body movement and other biological signals, as well as vibrations, impacts, and dynamic strain. 【Features】 ■ Shielded structure ■ Flexible with a flexible film piezoelectric material ■ Wide detection area ■ Uses piezo film (PVDF) for the piezoelectric element ■ Capable of handling large areas that are difficult with ceramics *For more details, please refer to the PDF document or feel free to contact us.

The "TP series" is a flexible piezo film sensor made of flexible film piezoelectric material. It is a general-purpose type with a single-layer structure and lead wires. It is suitable for monitoring biological signals such as body movements, as well as monitoring vibrations, impacts, and dynamic strains. Additionally, it uses piezo film (PVDF) as the piezoelectric element, which generates voltage in response to small changes such as compression and elongation (strain). 【Features】 ■ Compliant with RoHS directive ■ Single-layer structure ■ Flexible with flexible film piezoelectric material ■ General-purpose type with lead wires *For more details, please refer to the PDF materials or feel free to contact us.