Masaru Nakayama

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Kakuda, JP

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Patents Grantslast 30 patents

Information Patent Grant
Coordinate position of moving light source by using separated group...
- Patent number 6,014,129
- Issue date Jan 11, 2000
- Alps Electric Co., Ltd.
- Yuichi Umeda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for inclination detection and input apparatus using this...
- Patent number 5,963,194
- Issue date Oct 5, 1999
- Alps Electric Co. Ltd.
- Yuichi Umeda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Space coordinates detecting device and input apparatus using same
- Patent number 5,627,565
- Issue date May 6, 1997
- Alps Electric Co., Ltd.
- Ichiro Morishita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical beam system for optical disk drives
- Patent number 5,220,550
- Issue date Jun 15, 1993
- Alps Electric Co., Ltd.
- Masaru Nakayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens for optical pickup
- Patent number 4,820,029
- Issue date Apr 11, 1989
- Alps Electric Co., Ltd.
- Masato Iwai
- G02 - OPTICS