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Ricoh Research Institute of General Electronics Co., Ltd.

USPTO Granted Patents = 40

Forward Citations = 839

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58 inventors (with patents filed for the assignee):

Masafumi Kumano (8 out of 16 patents)

Koichi Haga (6 out of 14 patents)

Shiro Satoh (5 out of 6 patents)

4. Ikue Kawashima (4 out of 30 patents)

5. Hiroyuki Iechi (4 out of 9 patents)

6. Noriyuki Terao (3 out of 44 patents)

7. Hiroshi Miura (3 out of 53 patents)

8. Yasuyuki Shindoh (3 out of 7 patents)

9. Kenji Yamamoto (3 out of 7 patents)

10. Masaki Hiroi (2 out of 7 patents)

11. Kouichi Ohtaka (2 out of 24 patents)

12. Hiroshi Kondoh (2 out of 7 patents)

13. Yasuhiro Osawa (2 out of 5 patents)

14. Masumitsu Ino (2 out of 6 patents)

15. Takehito Nagata (2 out of 5 patents)

Core Competencies:

Semiconductor Devices

Optical Imaging

Light Emitting Diodes

Image Sensors

Thin Film Transistors

Photoconductive Materials

Electron-Beam Heating

Optical A/D Conversion

Micro Metal-Wiring Structures

Single Crystal Silicon

Photosensitive Materials

Contact Type Image Sensors

40 patents: Sort by Forward Citations

1. 5937327 - Method for improving wiring contact in semiconductor devices (1999-08-10),

2. 5684523 - Optical line printhead and an LED chip used therefor (1997-11-04),

3. 5545925 - Semiconductor device having a metallic silicide layer for improved (1996-08-13),

4. 5521402 - Semiconductor optical functional element of loading resistor integrated (1996-05-28),

5. 5448113 - Micro metal-wiring structure having stress induced migration resistance (1995-09-05),

6. 5444193 - Pen input device (1995-08-22),

7. 5428227 - Semiconductor light emitting element (1995-06-27),

8. 5408113 - High sensitivity improved photoelectric imaging device with a high (1995-04-18),

9. 5403673 - Functional thin film member (1995-04-04),

10. 5393953 - Electron-beam heating apparatus and heating method thereof (1995-02-28),

11. 5362673 - Method of manufacturing a semiconductor light emitting device (1994-11-08),

12. 5357123 - Light emitting diode array with dovetail (1994-10-18),

13. 5316960 - C-MOS thin film transistor device manufacturing method (1994-05-31),

14. 5307200 - Semiconductor optical device having an optical confinement structure (1994-04-26),

15. 5299031 - Image sensor and optical reading unit using the same (1994-03-29),

The Ricoh Research Institute of General Electronics Co., Ltd. (RRI) is an advanced research and development organization that operates under Ricoh Corporation, a global leader in imaging and electronics. RRI focuses on cutting-edge technologies in areas such as artificial intelligence, machine learning, computer vision, and robotics. With a commitment to innovation and addressing society's challenges, RRI plays a vital role in driving technological advancements in imaging and electronics.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

40 Patents

#1 in Natori

#1,932 in Japan

#16,572 in the World

Ricoh Research Institute of General Electronics Co., Ltd.

Forward Citations = 839

58 inventors:

Masafumi Kumano (8 out of 16 patents)

Koichi Haga (6 out of 14 patents)

Shiro Satoh (5 out of 6 patents)

4. Ikue Kawashima (4 out of 30 patents)

5. Hiroyuki Iechi (4 out of 9 patents)

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