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For the Inventor, By the Inventor

Katsuta, Japan

Yoshiyuki Yasutomi

This inventor holds 14 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1990-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Yasutomi. Retrieved from https://idiyas.com/inventor/yoshiyuki-yasutomi

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 4.7

ph-index = 6

Forward Citations = 185(Granted Patents)


Location History:

  • Katsuta, JP (1990 - 1995)
  • Ibaraki, JP (1998)
  • Mito, JP (1996 - 1999)

Company Filing History:

goldMedal14 out of 42,743 
 
Hitachi, Ltd.
 patents

Years Active: 1990-1999

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14 patents (USPTO):Explore Patents
1. 5876659 - Process for producing fiber reinforced composite (1999-03-02),
2. 5851675 - Apparatus having sliding member with precursor material providing solid (1998-12-22),
3. 5736198 - Self-recoverable covering material and method for fabricating the same (1998-04-07),
4. 5625153 - Method of non-destructively estimating life of ceramic member (1997-04-29),
5. 5581039 - Ceramic body and method and apparatus for detecting change thereof (1996-12-03),
6. 5403674 - Conductive material and process for preparing the same (1995-04-04),
7. 5378417 - Process for producing ceramic compositions (1995-01-03),
8. 5316987 - Ceramic composite and process for production thereof (1994-05-31),
9. 5271871 - Conductive material and process for preparing the same (1993-12-21),
10. 5252273 - Slip casting method (1993-10-12),
11. 5200373 - High strength composite ceramic structure and process for producing the (1993-04-06),
12. 5085806 - Conductive material and process for preparing the same (1992-02-04),
13. 5045922 - Installation structure of integrated circuit devices (1991-09-03),
14. 4923829 - Composite ceramics and method of making the same (1990-05-08),

Title: Innovations of Yoshiyuki Yasutomi

Introduction

Yoshiyuki Yasutomi is a prominent inventor based in Katsuta, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced composite materials. With a total of 14 patents to his name, Yasutomi's work has had a substantial impact on various high-temperature structural applications.

Latest Patents

Yasutomi's latest patents include a process for producing fiber reinforced composites and an innovative apparatus featuring a sliding member with precursor material. The fiber bundle reinforced composite material is designed for high-temperature structural members, showcasing excellent strength, toughness, and resistance to oxidation. This composite is reinforced with fiber bundles that contain multiple continuous inorganic fibers, which can be oriented in various directions or randomly within a matrix reinforced with nano-sized particles. Additionally, his apparatus comprises several sliding members, with at least one being self-lubricating. This sliding member contains a precursor compound that generates a solid-lubricating compound during use, enhancing its performance in various applications.

Career Highlights

Yoshiyuki Yasutomi has built a successful career at Hitachi, Ltd., where he has been instrumental in advancing the company's research and development efforts. His innovative approaches to material design and engineering have positioned him as a leader in his field.

Collaborations

Throughout his career, Yasutomi has collaborated with notable colleagues, including Masahisa Sobue and Tadahiko Miyoshi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Yoshiyuki Yasutomi's contributions to the field of materials science through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the development of advanced composite materials, paving the way for future innovations.

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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