Takaaki Tomita

Follow

Person

Moriguchi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Movable filter device
- Patent number 6,226,460
- Issue date May 1, 2001
- Matsushita Electric Industrial Co., Ltd.
- Masayuki Hino
- G02 - OPTICS
Information Patent Grant
Optical head apparatus including a waveguide layer with concentric...
- Patent number 5,200,939
- Issue date Apr 6, 1993
- Matsushita Electric Industrial Co., Ltd.
- Seiji Nishiwaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Light deflecting device
- Patent number 5,193,130
- Issue date Mar 9, 1993
- Matsushita Electric Industrial Co., Ltd.
- Seiji Nishiwaki
- G02 - OPTICS
Information Patent Grant
Optical head apparatus including concentric, periodic grating in a...
- Patent number 4,991,919
- Issue date Feb 12, 1991
- Matsushita Electric Industrial Co., Ltd.
- Seiji Nishiwaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY