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Zaidan Hojin Handotai Kenkyu Shinkokai

USPTO Granted Patents = 81

% Expired Patents = 1.2

Forward Citations = 1,783

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34 inventors (with patents filed for the assignee):

Jun-ichi Nishizawa (74 out of 162 patents)

Tadahiro Ohmi (17 out of 201 patents)

Takashige Tamamushi (7 out of 30 patents)

4. Junichi Nishizawa (5 out of 48 patents)

5. Toru Kurabayashi (3 out of 7 patents)

6. Yasuo Okuno (3 out of 4 patents)

7. Hideo Maeda (2 out of 27 patents)

8. Ken-ichi Nonaka (2 out of 3 patents)

9. Kiyoo Mitsui (2 out of 2 patents)

10. Koichi Mitamura (2 out of 3 patents)

11. Kaoru Motoya (2 out of 6 patents)

12. Sohbe Suzuki (2 out of 8 patents)

13. Ikuo Shiota (2 out of 3 patents)

14. Keishiro Takahashi (2 out of 2 patents)

15. Nobuo Takeda (1 out of 16 patents)

Core Competencies:

Static Induction Transistor

High-Speed Memory

Semiconductor Device

Integrated Circuit

Crystal Growth

Photoelectric Converter

Thyristor

Gallium Arsenide

Heterojunction

Light-Emitting Diode

Epitaxial Growth

Charge Transfer Device

81 patents: Sort by Forward Citations

1. 6977406 - Short channel insulated-gate static induction transistor and method of manufacturing the same (2005-12-20),

2. 5883406 - High-speed and high-density semiconductor memory (1999-03-16),

3. 5808328 - High-speed and high-density semiconductor memory (1998-09-15),

4. 5663582 - High frequency static induction transistor having high output (1997-09-02),

5. 5532511 - Semiconductor device comprising a highspeed static induction transistor (1996-07-02),

6. 5485017 - Semiconductor device and method of manufacturing same (1996-01-16),

7. 5426314 - Insulated gate control static induction thyristor (1995-06-20),

8. 5384476 - Short channel MOSFET with buried anti-punch through region (1995-01-24),

9. 5373808 - Method and apparatus for producing compound semiconductor single crystal (1994-12-20),

10. 5323029 - Static induction device (1994-06-21),

11. 5323028 - MOS composite static induction thyristor (1994-06-21),

12. 5296403 - Method of manufacturing a static induction field-effect transistor (1994-03-22),

13. 5240685 - Apparatus for growing a GaAs single crystal by pulling from GaAs melt (1993-08-31),

14. 5227647 - Semiconductor switching device (1993-07-13),

15. 5175598 - Semiconductor switching device (1992-12-29),

Zaidan Hojin Handotai Kenkyu Shinkokai is a research foundation based in Japan. They focus on technological advancements and contribute to society through their various research projects. For more information, please visit their website.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

81 Patents

#3 in Sendai

#1,288 in Japan

#9,328 in the World

Zaidan Hojin Handotai Kenkyu Shinkokai

Forward Citations = 1,783

34 inventors:

Jun-ichi Nishizawa (74 out of 162 patents)

Tadahiro Ohmi (17 out of 201 patents)

Takashige Tamamushi (7 out of 30 patents)

4. Junichi Nishizawa (5 out of 48 patents)

5. Toru Kurabayashi (3 out of 7 patents)

Please report any incorrect information to [email protected]

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