Jun-ichi Nishizawa

Sendai, Japan

Jun-ichi Nishizawa

This inventor holds 162 USPTO granted patents, primarily in Semiconductor Technology (CPC class 357 22). Top assignees: Zaidan Hojin Handotai Kenkyu Shinkokai, Semiconductor Research Foundation, Fuji Photo Film Company, Limited. Active years: 1976-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jun-ichi Nishizawa. Retrieved from https://idiyas.com/inventor/jun-ichi-nishizawa

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

Calculating rank

% Patents Active = 98.1

Average Co-Inventor Count = 1.6

ph-index = 23

Forward Citations = 3,066(Granted Patents)

Forward Citations (Not Self Cited) = 2,335(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Sendai, JA (1976 - 1978)
  • Sendai-shi, Miyagai-ken, JP (1984)
  • Komegafukuro Sendai, JP (1985)
  • Sendai, Miyagi Pref., JP (1986)
  • Komegafukuro, Sendai City, Miyagi Pref., JP (1985 - 1987)
  • Kawauchi, Sendai-shi, Miyagi-ken, JP (1988)
  • Sendai-shi, Miyagi JP (1985 - 1989)
  • Sendai-shi, Miygai-ken, JP (1989)
  • Sendai-shi, Miyagi-ken, JP (1983 - 1993)
  • Aoba-ku, Sendai-shi, Miyagi-ken, JP (1994 - 1996)
  • Aoka-ku, Sendai-shi, Miyagi-ken, JP (1996)
  • Sendai, JP (1978 - 1999)
  • Tokyo, JP (2005)
  • Sendai-shi, Miyagi, JP (1986 - 2009)
  • Miyagi, JP (1985 - 2011)

Company Filing History:

goldMedal74 out of 81 
 
Zaidan Hojin Handotai Kenkyu Shinkokai
 patents
silverMedal21 out of 24 
 
Semiconductor Research Foundation
 patents
bronzeMedal8 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
4. 8 out of 5,729 
 
Olympus Optical Company, Ltd.
 patents
5. 7 out of 13 
 
Handotai Kenkyu Shinkokai
 patents
6. 6 out of 10 
 
Junichi Nishizawa
 patents
7. 6 out of 256 
 
Research Development Corporation of Japan
 patents
8. 5 out of 841 
 
Nippon Gakki Seizo Kabushiki Kaisha
 patents
9. 3 out of 16,627 
 
Mitsubishi Electric Corporation
 patents
10. 3 out of 44 
 
Research Development Corporation
 patents
11. 3 out of 11 
 
Small Power Communication Systems Research Laboratories Co., Ltd.
 patents
12. 2 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
13. 2 out of 8,998 
 
Nikon Corporation
 patents
14. 2 out of 1,445 
 
Stanley Electric Co., Ltd
 patents
15. 2 out of 20 
 
Tohoku Metal Industries
 patents
16. 1 out of 1,430 
 
Agency of Industrial Science and Technology
 patents
17. 1 out of 1 
 
Budda Hajia Handotai Kenkyu Shinkokai
 patent
18. 1 out of 1 
 
Handotai Kenkyu Shinkokou
 patent
19. 1 out of 1 
 
Handotal Kenkyu Shinkokai
 patent
20. 1 out of 42,743 
 
Hitachi, Ltd.
 patents
21. 1 out of 166 
 
Jgc Corporation
 patents
22. 1 out of 1,154 
 
Kabushiki Kaisha Toyota Chuo Kenkyusho
 patents
23. 1 out of 471 
 
National Institute of Information and Communications Technology, Incorporated
 patents
24. 1 out of 1 
 
Semiconductor Research Foundation Mitsubishi Denki K.k.
 patent
25. 1 out of 3 
 
Tohoku Electric Manufacturing Co., Ltd.
 patents
26. 1 out of 66 
 
Tohoku Electric Power Company, Inc.
 patents
27. 1 out of 1,054 
 
Tohoku University
 patents
28. 1 out of 21 
 
Toyo Denki Seizo Kabushiki Kaisha
 patents
29. 1 out of 1 
 
Tsuken Electric Ind. Co., Ltd.
 patent
30. 24 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-2011

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Areas of Expertise:
Semiconductor Memory
Field Effect Transistor
MOSFET
Static Induction Thyristor
Epitaxial Growth
Photoelectric Converting Device
Switching Device
Power Converter
Insulated-Gate Transistor
Thyristor Device
Crystal Growth
Micro Flow Control
162 patents (USPTO):Explore Patents

Title: Jun-ichi Nishizawa: Pioneer in Semiconductor Memory Innovations

Introduction:

Jun-ichi Nishizawa, hailing from Sendai, Japan, is a renowned inventor and scientist who has made significant contributions to the field of semiconductor memory technology. With an impressive total of 121 patents to his name, Nishizawa has revolutionized the industry through his breakthrough inventions and has played a crucial role in advancing high-speed and high-density semiconductor memory devices.

Latest Patents:

Among his most notable recent patents is the development of a high-speed and high-density semiconductor memory. This innovation involves the formation of multiple field-effect type semiconductor memory elements perpendicular to the surface of a semiconductor wafer. By transporting charge carriers through the semiconductor bulk, perpendicular to the surface, and creating a potential barrier in the current path, Nishizawa accomplished efficient storage. This novel approach significantly improves the transit time of carriers and reduces the surface occupation area per memory cell, ultimately leading to the creation of a high-speed and high-density semiconductor memory device.

Career Highlights:

Throughout his illustrious career, Nishizawa has made remarkable contributions to the field of semiconductor technology. His relentless pursuit of innovation led him to work with esteemed organizations like the Semiconductor Research Foundation and Zaidan Hojin Handotai Kenkyu Shinkokai. Nishizawa's affiliation with these institutions further highlights his commitment to advancing semiconductor research and development.

Collaborations:

Nishizawa has also collaborated with prominent figures in the field, including Tadahiro Ohmi and Takashige Tamamushi. These collaborations exemplify his dedication to knowledge-sharing and the collective effort to push the boundaries of semiconductor memory technology forward.

Conclusion:

In conclusion, Jun-ichi Nishizawa's impact on semiconductor memory technology cannot be overstated. With his extensive patent portfolio, including his groundbreaking work in high-speed and high-density semiconductor memory devices, Nishizawa has solidified his position as a pioneer in the field. His collaborations with esteemed colleagues and his association with renowned institutions further emphasize the significance of his contributions. Nishizawa's relentless passion for innovation has not only transformed the landscape of semiconductor memory technology but has also paved the way for future advancements in the field.

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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