Tokyo Kogaku Kikai K.K.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lens meter and method of measurement of progressive multifocal lens...
- Patent number 4,730,924
- Issue date Mar 15, 1988
- Tokyo, Kogaku, Kikai, Kabushiki, Kaisha
- Henri Allard
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for measuring length or angle
- Patent number 4,484,816
- Issue date Nov 27, 1984
- Tokyo Kogaku Kikai K.K.
- Fumio Ohtomo
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for measuring length or angle
- Patent number 4,412,745
- Issue date Nov 1, 1983
- Tokyo Kogaku Kikai K.K.
- Fumio Ohtomo
- G01 - MEASURING TESTING
Information Patent Grant
Absolute encoder
- Patent number 4,384,204
- Issue date May 17, 1983
- Tokyo Kogaku Kikai K.K.
- Hiroshi Tamaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ophthalmic examination chart projector
- Patent number 4,094,592
- Issue date Jun 13, 1978
- Tokyo Kogaku Kikai Kabushiki Kaisha
- Mitsugu Aoki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Edge processing of chemically toughened lenses
- Patent number 3,981,709
- Issue date Sep 21, 1976
- Tokyo Kogaku Kikai Kabushiki Kaisha
- Fumio Kondo
- G02 - OPTICS

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Trademarklast 30 trademarks

Information Trademark
73238607 - GUPPY
- Serial number 73238607
- Registration number 1169046
- Filing date Nov 9, 1979
- Tokyo Kogaku Kikai Kabushiki Kaisha (Tokyo Optical Co., Ltd.)
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments