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For the Inventor, By the Inventor

Itami, Japan

Mitsuhiko Nakagawa

This inventor holds 12 USPTO granted patents. Top assignee: Sumitomo Electric Industries, Limited. Active years: 1987-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mitsuhiko Nakagawa. Retrieved from https://idiyas.com/inventor/mitsuhiko-nakagawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 7

Forward Citations = 117(Granted Patents)


Location History:

  • Hyogo, JP (1993)
  • Itami, JP (1987 - 2001)

Company Filing History:

goldMedal12 out of 10,641 
 
Sumitomo Electric Industries, Limited
 patents

Years Active: 1987-2001

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12 patents (USPTO):Explore Patents
1. 6193025 - Disk-brake pad (2001-02-27),
2. 5787941 - Device for feeding a mixture of friction materials (1998-08-04),
3. 5637836 - Constant-rate feeder of powdery material and method for producing (1997-06-10),
4. 5343733 - Abrasion testing method (1994-09-06),
5. 5268398 - Friction material and method of manufacturing such material (1993-12-07),
6. 5266395 - Friction material for making brake pads (1993-11-30),
7. 5236528 - Method for producing a friction member especially for a brake (1993-08-17),
8. 5095961 - Powder feeding device (1992-03-17),
9. 4743635 - Friction material and method of making such material (1988-05-10),
10. 4678818 - Friction material and method of making such material (1987-07-07),
11. 4672082 - Friction material using steel fibers (1987-06-09),
12. 4665108 - Friction material using iron powder (1987-05-12),

Title: Mitsuhiko Nakagawa: Innovator in Friction Material Technology

Introduction

Mitsuhiko Nakagawa is a prominent inventor based in Itami, Japan. He has made significant contributions to the field of friction materials, holding a total of 12 patents. His work focuses on enhancing the performance and durability of components used in vehicles and machinery.

Latest Patents

One of Nakagawa's latest patents is for a disk-brake pad designed to control the revolution of revolving parts in vehicles and machines. This innovative pad features an improved heat resistivity in an underlayer material, which is interposed between a friction material and a backing plate. The underlayer material includes linear or branched plastic with a melting temperature of 200°C or higher, making it suitable for heavy-load conditions. Additionally, the underlayer can consist of multiple layers with different compositions to enhance effectiveness.

Another notable patent is a device for feeding a mixture of friction materials. This feed device ensures that the friction material mixture is fed into a mold with uniform thickness, thereby improving the quality and stability of the friction member produced through heating and pressure-molding. The device includes a main conveyor and sub-conveyors that work together to deliver the material mixture accurately into the mold.

Career Highlights

Mitsuhiko Nakagawa is currently employed at Sumitomo Electric Industries, Limited, where he continues to innovate in the field of friction materials. His expertise and dedication have made him a valuable asset to the company.

Collaborations

Throughout his career, Nakagawa has collaborated with talented individuals such as Fumiaki Nitto and Yukinori Yamashita. These collaborations have contributed to the advancement of technology in their field.

Conclusion

Mitsuhiko Nakagawa's work in friction material technology exemplifies innovation and dedication. His patents reflect a commitment to improving the performance of essential components in vehicles and machinery. His contributions continue to influence the industry positively.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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