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  1. Home
  2. Industrial Electrical Equipment
  3. キョーワハーツ
Industrial Electrical Equipment
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キョーワハーツ

EstablishmentJanuary 16, 1958
capital1000Ten thousand
number of employees20
addressKanagawa/Kohoku-ku, Yokohama-shi/1-5-1 Takadanishi
phone045-593-6116
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last updated:Dec 17, 2024
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  • Products/Services(61)
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キョーワハーツ Company Overview

We specialize in fine, complex, and precise press processing as our core technology, providing support for development and manufacturing, as well as in-house product development. We also undertake mold production.

Our company specializes in fine, complex, and precision press processing. *We also sell molds! We can handle everything from examining the shape of customer parts, prototyping, mold manufacturing, to mass production processing. 【Our Expertise Developed Over Time】 1. Deep drawing and flat spring processing 2. Fine processing (plate thickness: 0.03) 3. Complex shapes and high-precision bending processing 4. Processing of difficult materials (titanium, shape memory alloys, magnesium alloys, etc.) 【Proposal Power Supporting Quick Start-Up】 Many customers consult us during product development, asking if certain processing is possible, seeking advice during the conceptual stage, or wanting to start with prototyping. In the development phase, we provide comprehensive advice on material and shape decisions, as well as secondary processing, to fully support the launch of new products. We also believe that "refined products are a testament to stable quality," and we enter mass production only after sufficient adjustments (taking extra care). 【Efforts in In-House Product Development】 We are also engaged in in-house product development utilizing our cultivated precision press processing technology. We have developed a new type of file for binding documents, called "Nuke," which allows for easy insertion and removal of documents from the center, attracting attention as an item that enhances office productivity.

Business Activities

**Prototyping with Mass Production in Mind** Especially for mechanical parts like leaf springs (thin plate springs), handmade prototypes are essential for function verification. Our prototyping concept is "handmade prototypes with mass production in mind." We can accommodate orders from 1 to over 1,000 units with short lead times. Additionally, we will respond to prototype estimates within two hours. **Mass Production Molds Ensuring Stable Quality** From mold design to manufacturing and press mass production processing, we provide integrated production. We create molds that are simple, compact, high-precision, and highly durable. We also respond quickly to unavoidable mold changes and modifications during mass production startup. Molds can also be sold separately. **Mold Trouble Emergency Team** * Molds that cannot achieve precision * Molds with high variability * Molds from companies that have gone out of business We utilize the technology and experience we have cultivated to address mold troubles. We passionately respond to our customers' expectations. **Guarantee of Optimal Quality/Product Environmental Quality** We obtained ISO 9001 certification in November 1999, ISO 14001 certification in April 2010, and medical device manufacturing registration in April 2017. We are also engaged in quality management certification (hosted by the Japan Standards Association), with most of our on-site employees obtaining level 3 or higher.

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Recommended information

Technical Information: How to Choose Metal Materials for Thin Plate Springs

Technical Information: How to Choose Metal Materials for Thin Plate Springs

As a result of excellent design, we can achieve high productivity products at low cost!

At Kyo-Wa Hearts, we specialize in the manufacturing of thin plate springs. In this document, we will introduce information following the basic selection methods, including examples of material selection based on customer inquiries and usage cases in special environments. Additionally, we will be exhibiting at the "Metal Press Processing Technology Exhibition" and the "Machine Elements Technology Exhibition," both held from June 21 (Wednesday) to June 23 (Friday), 2023. We sincerely look forward to your visit. [Contents] - Use of stainless steel and copper and copper alloys - Selection of non-magnetic spring materials at high strength levels - Considering the use of spring materials in high-temperature environments - Spring materials used in corrosive environments - Examples of springs with special structures *For more details, please refer to the PDF document or feel free to contact us.

Products/Services (61)

Express Prototyping for the Telecommunications Industry product image
Express Prototyping for the Telecommunications Industry
Mold sales product image
Mold sales
[Information] Introduction of Medical Press Parts product image
[Information] Introduction of Medical Press Parts
Express prototype product image
Express prototype

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catalog(65)

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Mold sales

Mold sales

TECHNICAL
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[Information] Introduction of Medical Press Parts

[Information] Introduction of Medical Press Parts

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Express prototype

Express prototype

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[Explanatory Material] Why is there such a difference in mold prices among companies?

[Explanatory Material] Why is there such a difference in mold prices among companies?

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news(66)

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May 13 (Wednesday) to May 16 (Saturday), 2026: Invitation to exhibit at 'EMIDAS Manufacturing Business Meeting 2026 in Bangkok'

  • SEMINAR_EVENT

Kyo-Wa Hearts Co., Ltd. will be exhibiting at the 'EMIDAS Manufacturing Business Meeting 2026 @ Bangkok' held in Bangkok, Thailand. This is an exhibition and business meeting primarily focused on "small and medium-sized manufacturing-related companies," held annually in Thailand and Vietnam. It is a trade show that boasts a top-class number of visitors from various countries, and matching through advance business meeting applications is possible. This time, we will be exhibiting in Bangkok, Thailand. We sincerely look forward to your visit.

Mar 05, 2026

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Notice of participation in 'INTERMOLD Nagoya/Mold Exhibition Nagoya' from May 20 (Wednesday) to May 22 (Friday), 2026.

  • SEMINAR_EVENT

Kyo-Wa Hearts Co., Ltd. will be exhibiting at the 'INTERMOLD Nagoya / Mold Exhibition Nagoya' held at Portmesse Nagoya. This exhibition is a specialized event for mold and metal press processing technology, showcasing new products and services from various fields such as machine tools that support mold manufacturers, various tools, CAD/CAM/CAE, surface treatment, and case studies through displays and seminars. It provides a venue for solving challenges faced by manufacturing-related companies and promoting business. We sincerely look forward to your visit.

Mar 05, 2026

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Notice of Participation in 'Medtec Japan' from April 21 (Tuesday) to April 23 (Thursday), 2026

  • SEMINAR_EVENT

Kyo-Wa Hearts Co., Ltd. will be exhibiting at 'Medtec Japan' held at Tokyo Big Sight. This exhibition is one of the largest in Asia related to the manufacturing and development of medical devices, where medical device suppliers and manufacturers (research and development, manufacturing departments, quality control, etc.) can actively gather information and conduct business negotiations. We sincerely look forward to your visit.

Mar 05, 2026

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Detailed information

Company name キョーワハーツ
number of employees20
Contact addresspostalcode 223-0066 Kanagawa/ Kohoku-ku, Yokohama-shi/ 1-5-1 TakadanishiView on map TEL:045-593-6116 FAX:045-593-6121
Key PartnersAutomotive electrical components, communication equipment parts, various electronic components, medical devices, semiconductor testing equipment, building materials, accessory manufacturers, and over 50 stationery trading companies.
Business LocationsClick here for the list
Industry Industrial Electrical Equipment
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