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For the Inventor, By the Inventor

Tokyo, Japan

Toshikatsu Ishikawa

This inventor holds 15 USPTO granted patents. Top assignees: Nippon Carbon Co., Ltd., Agency of Industrial Science and Technology, Nippon Oil Company. Active years: 1978-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshikatsu Ishikawa. Retrieved from https://idiyas.com/inventor/toshikatsu-ishikawa

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

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 8

Forward Citations = 132(Granted Patents)


Location History:

  • Tokyo, JA (1978)
  • Tokyo, JP (1978 - 1991)
  • Ohta, JP (1991)

Company Filing History:

goldMedal11 out of 41 
 
Nippon Carbon Co., Ltd.
 patents
silverMedal3 out of 1,430 
 
Agency of Industrial Science and Technology
 patents
bronzeMedal1 out of 690 
 
Nippon Oil Company
 patents

Years Active: 1978-1991

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15 patents (USPTO):Explore Patents
1. 5051207 - Heat-resistant and corrosion-resistant composition (1991-09-24),
2. 5021370 - Ceramic fibers and a process for producing the same (1991-06-04),
3. 4877643 - Process for producing preformed wire from silicon carbide (1989-10-31),
4. 4779563 - Ultrasonic wave vibration apparatus for use in producing preform wire, (1988-10-25),
5. 4769195 - Manufacturing a silicon carbide fiber reinforced glass composite using (1988-09-06),
6. 4726980 - Electromagnetic wave absorbers of silicon carbide fibers (1988-02-23),
7. 4717589 - Method for manufacturing a silicon carbide fiber reinforced glass (1988-01-05),
8. 4649060 - Method of producing a preform wire, sheet or tape fiber reinforced metal (1987-03-10),
9. 4507354 - Electromagnetic wave absorbers of silicon carbide fibers (1985-03-26),
10. 4440571 - Process for the surface treatment of inorganic fibers for reinforcing (1984-04-03),
11. 4356158 - Process for producing carbon fibers (1982-10-26),
12. 4226821 - Process for producing flexible graphite (1980-10-07),
13. 4117051 - Carbon article manufacturing method (1978-09-26),
14. 4094951 - Composites of oxidized graphite material and expanded graphite material (1978-06-13),
15. 4075114 - Flexible graphite material containing boric acid (1978-02-21),

Title: Innovations by Toshikatsu Ishikawa - A Pioneer in Material Science

Introduction

Toshikatsu Ishikawa is an esteemed inventor based in Tokyo, Japan, recognized for his significant contributions to material science. With an impressive portfolio of 15 patents, Ishikawa has made transformative advancements, particularly in the realms of heat-resistant and corrosion-resistant materials.

Latest Patents

Some of his latest patents include groundbreaking inventions such as a heat-resistant and corrosion-resistant composition, as well as ceramic fibers and a process for producing the same. These innovations not only showcase his expertise but also highlight the importance of durable materials in various industries.

Career Highlights

Throughout his career, Ishikawa has been affiliated with prominent organizations, including Nippon Carbon Co., Ltd. and the Agency of Industrial Science and Technology. His work at these institutions has been pivotal in enhancing the understanding and application of advanced materials.

Collaborations

Ishikawa's journey as an inventor has involved valuable collaborations with notable colleagues such as Haruo Teranishi and Yoshikazu Imai. These partnerships have further expanded the horizons of research and development in material sciences.

Conclusion

In summary, Toshikatsu Ishikawa stands as a remarkable figure in the field of innovation, with a track record of influential patents and collaborations. His work continues to inspire advancements in various applications, setting a standard for future inventors in the material sciences sector.

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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