Membership
Tour
Register
Log in
Shigeo Tohji
Follow
Person
Tokyo, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Automatic focusing device
Patent number
4,952,962
Issue date
Aug 28, 1990
Asahi Kogaku Kogyo Kabushiki Kaisha
Noboru Suzuki
G02 - OPTICS
Information
Patent Grant
Automatic focusing projector
Patent number
4,905,034
Issue date
Feb 27, 1990
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasuyuki Tejima
G02 - OPTICS
Information
Patent Grant
Automatic focusing device
Patent number
4,868,592
Issue date
Sep 19, 1989
Asahi Kogaku Kogyo Kabushiki Kaisha
Noboru Suzuki
G02 - OPTICS