Masaaki Sakamoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Direct-contact-type image sensor
- Patent number 4,887,166
- Issue date Dec 12, 1989
- Oki Electric Industry Co., Ltd.
- Hiroaki Kakinuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pin photodiode and method of fabrication of the same
- Patent number 4,885,622
- Issue date Dec 5, 1989
- Oki Electric Industry Co., Ltd.
- Akira Uchiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric conversion device
- Patent number 4,811,069
- Issue date Mar 7, 1989
- Oki Electric Industry Co., Ltd.
- Hiroaki Kakinuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High signal to noise ratio optical image reader
- Patent number 4,733,097
- Issue date Mar 22, 1988
- Oki Electric Industry Co., Ltd.
- Toshiyuki Iwabuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image reader with scanning by array of sequentially illuminated lig...
- Patent number 4,672,219
- Issue date Jun 9, 1987
- Oki Electric Industry Co., Ltd.
- Toshiyuki Iwabuchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE