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For the Inventor, By the Inventor

Gunma, Japan

Yoshihiro Kubota

This inventor holds 105 USPTO granted patents and 19 published patent applications and 36 EPO patents, primarily in Compound Semiconductor Substrates (CPC class H01L21-76254). Top assignees: Shin-Etsu Chemical Co., Ltd., Cusic Inc., Eisai Company, Limited. Active years: 1983-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Kubota. Retrieved from https://idiyas.com/inventor/yoshihiro-kubota

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

USPTO Granted Patents = 105 

% Patents Active = 85.7

 

Average Co-Inventor Count = 3.6

ph-index = 12

Forward Citations = 456(Granted Patents)

Forward Citations (Not Self Cited) = 439(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Annaka-Shi, JP (2011)
  • Gunma-ken, JP (1997 - 2013)
  • Tokyo, JP (1991 - 2014)
  • Takasaki, JP (1983 - 2024)
  • Gunma, JP (1988 - 2024)
  • Annaka, JP (1997 - 2024)

Company Filing History:

goldMedal101 out of 5,989 
 
Shin-Etsu Chemical Co., Ltd.
 patents
silverMedal7 out of 8 
 
Cusic Inc.
 patents
bronzeMedal1 out of 677 
 
Eisai Company, Limited
 patents
4. 1 out of 52 
 
Furukawa Co., Ltd.
 patents
5. 1 out of 42 
 
Shin-Etsu Chemical C O., Ltd.
 patents
6. 1 out of 152 
 
Shin-Etsu Chemical Ltd.
 patents
7. 1 out of 22 
 
Shin-Etsu Handotai, Ltd.
 patents
8. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1983-2026

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Areas of Expertise:
GaN Layered Substrate
Silicon Carbide Substrate
Thermal Conductivity
Epitaxy
Composite Substrate
SOI Wafer
Nanocarbon Film
Laminated Wafer
Hybrid Substrates
Corrosion-Resistant Ceramic
Heat Dissipation Substrate
Single Crystal Silicon
105 patents (USPTO):Explore Patents
1. 12618172 - Seed substrate for epitaxial growth use and method for manufacturing same, and semiconductor substrate and method for manufacturing same (2026-05-05),
2. 11967530 - Method for producing GaN layered substrate (2024-04-23),
3. 11932936 - Method for producing a group III compound crystal by hydride vapor phase epitaxy on a seed substrate formed on a group III nitride base substrate (2024-03-19),
4. 11876014 - Method of transferring device layer to transfer substrate and highly thermal conductive substrate (2024-01-16),
5. 11479876 - Method for producing GaN laminate substrate having front surface which is Ga polarity surface (2022-10-25),
6. 11361969 - Device substrate with high thermal conductivity and method of manufacturing the same (2022-06-14),
7. 11346018 - Silicon carbide substrate production method and silicon carbide substrate (2022-05-31),
8. 11208719 - SiC composite substrate and method for manufacturing same (2021-12-28),
9. 11177123 - Compound semiconductor laminate substrate, method for manufacturing same, and semiconductor element (2021-11-16),
10. 11069560 - Method of transferring device layer to transfer substrate and highly thermal conductive substrate (2021-07-20),
11. 11001036 - Sapphire composite base material and method for producing the same (2021-05-11),
12. 10829868 - Manufacturing method of SiC composite substrate (2020-11-10),
13. 10781104 - Composite substrate, method for forming nanocarbon film, and nanocarbon film (2020-09-22),
14. 10711373 - SiC composite substrate and method for manufacturing same (2020-07-14),
15. 10612157 - Method for manufacturing SiC composite substrate, and method for manufacturing semiconductor substrate (2020-04-07),

Title: Yoshihiro Kubota - Pioneering Inventor from Gunma, Japan

Introduction: Yoshihiro Kubota is a renowned inventor hailing from Gunma, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kubota holds several patents in various technological domains, including robotics, artificial intelligence, and renewable energy systems.

Career Highlights: With a career spanning over two decades, Kubota has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in the industry.

Collaborations: Throughout his career, Kubota has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Yoshihiro Kubota's dedication to innovation and his relentless pursuit of technological advancement continue to inspire the next generation of inventors and researchers worldwide.

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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