Hiroo Sugai

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Patents Grantslast 30 patents

Information Patent Grant
Automatic angle compensator
- Patent number 5,847,824
- Issue date Dec 8, 1998
- Kabushiki Kaisha TOPCON
- Fumio Ohtomo
- G02 - OPTICS
Information Patent Grant
Device for producing ring-shaped laser spot
- Patent number 5,638,220
- Issue date Jun 10, 1997
- Kabushiki Kaisha Topcon
- Fumio Ohtomo
- G02 - OPTICS
Information Patent Grant
Tilt angle automatic compensator in all directions
- Patent number 5,513,001
- Issue date Apr 30, 1996
- Kabushiki Kaisha Topcon
- Fumio Ohtomo
- G02 - OPTICS
Information Patent Grant
Optical adapter for a light-wave rangefinder
- Patent number 4,692,023
- Issue date Sep 8, 1987
- Tokyo Kagaku Kikai Kabushiki Kaisha
- Fumio Ohtomo
- G02 - OPTICS
Information Patent Grant
Inclination measuring apparatus having a prism with associated liqu...
- Patent number 4,666,299
- Issue date May 19, 1987
- Tokyo Kogaku Kikai Kabushiki Kaisha
- Hiroshi Tamaki
- G01 - MEASURING TESTING