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For the Inventor, By the Inventor

Kanagawa, Japan

Isao Yamashita

This inventor holds 16 USPTO granted patents and 2 published patent applications and 12 EPO patents. Top assignee: Tosoh Corporation. Active years: 2009-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Yamashita. Retrieved from https://idiyas.com/inventor/isao-yamashita

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

USPTO Granted Patents = 16 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.8

ph-index = 5

Forward Citations = 63(Granted Patents)


Location History:

  • Odawara, JP (2009)
  • Ayase, JP (2020)
  • Kanagawa, JP (2011 - 2023)

Company Filing History:

goldMedal16 out of 923 
 
Tosoh Corporation
 patents

Years Active: 2009-2026

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16 patents (USPTO):Explore Patents
1. 12759948 - Ceramic matrix composite and method for producing the same (2026-10-13),
2. 12673901 - Ceramic continuous fibers having metal element and ceramic matrix composite material using same (2026-07-07),
3. 12319621 - Zirconia sintered body and method for producing same (2025-06-03),
4. 12134584 - Coating layer-attached continuous ceramic fiber and method for producing same, and ceramic matrix composite material and method for producing same (2024-11-05),
5. 11807579 - Zirconia sintered body and manufacturing method of the same (2023-11-07),
6. 11535565 - Black sintered body and method for producing the same (2022-12-27),
7. 10696022 - Composite plate and production method therefor (2020-06-30),
8. 10682831 - Composite plate and method for producing same (2020-06-16),
9. 10273191 - Translucent zirconia sintered body, method for manufacturing same, and use thereof (2019-04-30),
10. 9249058 - High-strength transparent zirconia sintered body, process for producing the same, and uses thereof (2016-02-02),
11. 9174877 - Colored translucent zirconia sintered body, its production process and its use (2015-11-03),
12. 8785008 - Zirconia sintered bodies with high total light transmission and high strength, uses of the same, and process for producing the same (2014-07-22),
13. 8722555 - High-strength transparent zirconia sintered body, process for producing the same, and uses thereof (2014-05-13),
14. 8481439 - Colored alumina sintered body of high toughness and high translucency, and its production method and its uses (2013-07-09),
15. 7888279 - High toughness translucent alumina sintered body, method for producing the same, and its uses (2011-02-15),

Title: Isao Yamashita: Innovations in Ceramic Fiber Technologies

Introduction

Isao Yamashita, based in Kanagawa, Japan, is a notable inventor with an impressive portfolio of 13 patents. His work primarily focuses on advancements in ceramic materials, showcasing his commitment to innovation and technology.

Latest Patents

Among his latest inventions are two significant patents: the first is for a coating layer-attached continuous ceramic fiber and a method for producing the same. This innovative product features a continuous ceramic fiber that has a metallic compound coating layer of just 50 nanometers thick. The second patent pertains to the development of a ceramic matrix composite material that incorporates this coating layer-bonded continuous ceramic fiber. Furthermore, he introduced a zirconia sintered body that consists of both transparent and opaque zirconia portions, boasting a biaxial bending strength of 300 MPa or more, with the opaque portion available in various shades.

Career Highlights

Isao Yamashita works at Tosoh Corporation, where he has been instrumental in advancing the company's technological capabilities. His role involves extensive research and development, particularly in the fields related to ceramics and materials science, contributing to improving product effectiveness and application methods.

Collaborations

Throughout his career, Yamashita has collaborated with talented colleagues, including Koji Tsukuma and Shoichi Yamauchi. Together, they have contributed to the innovative projects at Tosoh Corporation, enhancing the company’s reputation as a leader in ceramic materials.

Conclusion

Isao Yamashita continues to make significant strides in the realm of ceramics with his innovative patents and collaborative efforts at Tosoh Corporation. His contributions are shaping the future of material science, paving the way for new technologies and applications in various industries.

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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