富士ウェーブ List of Products and Services

This document introduces wireless power transmission using a cylindrical water medium. It includes sections such as "Overview of the Device and Evaluation Methods," "Measurement Methods for kQ Product and ηmax Using VNA," "Effects of Water on Capacitance," and "Results of Individual Measurements of k and Q." Additionally, it provides graphical explanations of measurement results for "the case without water in the pipe" and "the case with water in the pipe." 【Contents (Excerpt)】 ■ Preface ■ Overview of the Device and Evaluation Methods ■ Measurement Methods for kQ Product and ηmax Using VNA ■ Effects of Water on Capacitance *For more details, please refer to the PDF document or feel free to contact us.

• Other power sources

Our company is developing a wireless power transfer system. Wireless power transfer is a contactless power supply system that uses methods such as electromagnetic induction, electric field coupling, magnetic resonance, and microwaves. Applications are expected in areas such as powering electric vehicles while driving, wall power supply, and medical devices. ◎ We provide support for the development of wireless power transfer! You can view materials summarizing research content and pending patents from the "PDF Download." 【Specific issues under consideration (excerpt)】 - Powering electric vehicles (EV) while driving - Wireless power supply for capsule endoscopes - Power supply in seawater - Wireless power supply for industrial multi-joint robots - Non-contact power supply for arm robots, etc. (Using a rotating disk to achieve non-contact at the joints of arm robots) * We will also introduce materials on the principles of power supply systems and methods of theoretical analysis. The market size for wireless power transfer, which has begun to move toward practical implementation, is expected to increase by 42.4% compared to 2017. * We are accepting individual visits. * We are looking for joint development partners. * For more details, please download the PDF or feel free to contact us.

• Other power sources
• Public Testing/Laboratory

A project aimed at applying deep-sea drilling for scientific research, earthquake studies, and resource exploration is being advanced by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). Until now, we have been relying on battery-powered electrodes loaded at the drill tip, but the need for frequent battery replacements has resulted in significant time and cost burdens, leading to requests for a solution. In response, our company has been conducting trials for three years and has finally reached a stage where we feel the possibility of realization. This document provides an overview of our progress, which can be found in the materials available for download below. [Contents] - Structure and operation of the riser system for deep-sea drilling - Methods and challenges of adding a power supply system - Principles of the power supply system - Methods of theoretical analysis - Verification of reliability, and more *We welcome individual visits. *We are looking for joint development partners. *For more details, please refer to the PDF materials or feel free to contact us.

• others

Introducing our development of a "non-contact power supply circuit for multi-joint arm robots." Conventional arm robots have faced issues such as power cables breaking due to joint rotation, or cables restricting the range of motion at the joints, leading to malfunctions and problems. This results in costs and time required for replacements. However, our arm robot currently under development aims to avoid cable breakage by adopting a "non-contact power supply circuit," which will also enable infinite rotation without cables. Additionally, we aim to resolve traditional issues and achieve added value through improved efficiency during inspections via modularization. We are seeking companies interested in collaborating on this development. 【+α System】 ■ Modularization of the system - Easily detachable for convenient inspection work ■ Simultaneous transmission of power and signals - Control cables will also be non-contact ■ Application to IoT - Connection between devices, factories, and base stations at the factory level *We welcome individual visits. *For more details, please refer to the PDF document or feel free to contact us.

• Other energy equipment

Ryutech is developing a "non-contact power supply system for EVs during driving." The system currently under development utilizes our patented discripter and combines the advantages of electric field coupling, which features long transmission electrodes, and magnetic field coupling, which has the characteristic of not requiring ground electrodes. Currently, the "magnetic field coupling" system, which aims for power supply during driving, is considered a barrier to practical application due to excessive infrastructure investment. However, we believe that our "electric field coupling" system will definitely be adopted because it is cost-effective. We are looking for companies that would like to collaborate on development. For more details, please contact us. 【Features of the power supply system for EVs during driving】 ■ Issues with battery cars (EVs) - Short driving range - Long charging time - High vehicle cost ■ Application of our developed "discripter" - Solves the drawbacks of electric field coupling and magnetic field coupling ■ Combines the strengths of both electric field coupling and magnetic field coupling *We welcome individual visits. *For more details, please refer to the PDF materials or feel free to contact us.

• Other energy equipment

Our company primarily supports the development of wireless power transfer systems. Currently, all systems, including the one shown in the image here, are "under development." Therefore, we are looking for companies that would like to collaborate on this development. Among the three images, the photo of the ship shows the deep-sea drilling vessel "Chikyu" operated by the Japan Agency for Marine-Earth Science and Technology. We are developing a system to wirelessly power the drill pipe of this ship. After three years of fundamental research, we are finally moving towards practical research this year. Under the company policy of "reviving Japan's spirit of technological innovation through the development of wireless power transfer systems," we are challenging ourselves to undertake developments that no one else is doing. Would you like to realize world-leading technology together with us? 【Business Content】 ■ Development and consulting of wireless power transfer systems ■ Development and consulting of metamaterial application circuits ■ Development and consulting of filter circuits ■ Education related to wireless power transfer systems, microwave circuits, and electromagnetism ■ All businesses related to the above * We are currently seeking joint development partners. * For more details, please refer to the PDF document or feel free to contact us.

• Other energy equipment

- This method utilizes our company's patented discripter, combining the characteristics of electric field coupling, which features long transmission electrodes, and magnetic field coupling, which has the property of not requiring ground electrodes. - The magnetic field coupling, which is being pursued worldwide for on-road power supply, is considered to have excessive infrastructure investment, posing obstacles to practical implementation, so I believe that the cost-effective electric field coupling will definitely be adopted. - However, since electric field coupling is a latecomer, its current level of completion is low, so we must urgently establish a timeline for practical implementation and position ourselves for comparison with magnetic field coupling. *We are accepting individual visits. *We are looking for joint development partners.

• Other energy equipment

- This system has reached the stage where a working sample for verifying the operating principle has been completed, so time is needed to reach the mass production sample. - Since we are a research institute, we do not have the capability for mass production, nor the ability to produce mass production samples, so we hope for joint development from this point onward. - The samples produced are models that are 1/5 to 1/10 the size of the actual product, so transitioning to the actual product will require changes not only in shape, dimensions, and weight, but also in specifications such as voltage, current, and frequency. * We are accepting individual visits. * We are looking for joint development partners. * For more details, please download the PDF or feel free to contact us.

• Articulated Robot

Ryutek is developing wireless power transfer systems. Wireless power transfer is a power supply system that does not require contact, using methods such as electromagnetic induction, electric field coupling, magnetic resonance, and microwaves. Applications for powering electric vehicles while driving, wall power supply, and medical devices are anticipated. The market size for wireless power transfer, which has begun to move toward practical implementation, is expected to increase by 42.4% compared to 2017. ◎ Our company supports the development of wireless power transfer! [From PDF download] You can view materials summarizing research content and pending patents. Please feel free to contact us for inquiries or consultations. [Specific issues under consideration (excerpt)] - Powering electric vehicles (EV) while driving - Wireless power transfer for capsule endoscopes - Power supply in seawater - Wireless power transfer for industrial multi-joint robots - Non-contact power supply for arm robots (using a rotating disk to achieve non-contact at the joints of the arm robot) * We accept individual visits. * We are looking for joint development partners. * For more details, please refer to the catalog or feel free to contact us.

• Other power sources
• Public Testing/Laboratory

Fujii Wave Co., Ltd. is a company primarily engaged in the development support of wireless power transmission systems. We conduct research by setting challenges for non-contact power transmission used in various fields such as transportation and toys. We handle award-winning devices like the Discrepeater, which won the Best Paper Award, and wireless power transmission devices currently under patent application. Please feel free to contact us first. 【Business Content】 ■ Development and consulting of wireless power transmission systems ■ Development and consulting of metamaterial application circuits ■ Development and consulting of filter circuits ■ Education on wireless power transmission systems, microwave circuits, and electromagnetism ■ All businesses related to the above * We accept individual visits. * We are looking for joint development partners. * For more details, please download the PDF or feel free to contact us.

• Other power sources
• Public Testing/Laboratory