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TOKYO OPTICAL COMPANY LIMITED
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ITABASHI-KU, TOKYO, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Back focus controlling device in optical systems
Patent number
4,457,619
Issue date
Jul 3, 1984
Fuji Xerox Co., Ltd.
Toshikatsu Takahashi
G02 - OPTICS
Information
Patent Grant
Thermosetting resin composition comprising an [(2,3-epoxypropoxy)al...
Patent number
4,049,867
Issue date
Sep 20, 1977
Japan Atomic Energy Research Institute
Akihiko Ito
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Soft contact lenses and process for preparation thereof
Patent number
3,983,083
Issue date
Sep 28, 1976
Japan Atomic Energy Research Institute
Isao Kaetsu
G02 - OPTICS
Information
Patent Grant
Transparent resin composite
Patent number
3,955,035
Issue date
May 4, 1976
Japan Atomic Energy Research Institute
Akihiko Ito
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
72352739 - UNIREX
Serial number
72352739
Registration number
913214
Filing date
Mar 2, 1970
TOKYO OPTICAL COMPANY LIMITED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72134498 - TOPCONETTE
Serial number
72134498
Registration number
745412
Filing date
Dec 21, 1961
TOKYO OPTICAL COMPANY LIMITED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72016918 - TOPCOR
Serial number
72016918
Registration number
658043
Filing date
Oct 3, 1956
TOKYO OPTICAL COMPANY LIMITED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72016916 - TOPCOFLEX
Serial number
72016916
Registration number
658041
Filing date
Oct 3, 1956
TOKYO OPTICAL COMPANY LIMITED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72016917 - TOPCON
Serial number
72016917
Registration number
658042
Filing date
Oct 3, 1956
TOKYO OPTICAL COMPANY LIMITED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments