Hitoshi Ohashi

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Hachioji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Illuminating optical system for cutting infrared light by relief ty...
- Patent number 6,099,146
- Issue date Aug 8, 2000
- Olympus Optical Company, Ltd.
- Ayami Imamura
- G02 - OPTICS
Information Patent Grant
Illuminating optical system for use in projecting exposure device
- Patent number 6,095,667
- Issue date Aug 1, 2000
- Olympus Optical Co., Ltd.
- Yasuhiro Kamihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing optical element
- Patent number 5,843,321
- Issue date Dec 1, 1998
- Olympus Optical Company, Ltd.
- Yasuhiro Kamihara
- G02 - OPTICS
Information Patent Grant
Method of manufacturing die and optical element performed by using...
- Patent number 5,770,120
- Issue date Jun 23, 1998
- Olympus Optical Co., Ltd.
- Yasuhiro Kamihara
- G02 - OPTICS
Information Patent Grant
Diffractive optical element and optical system including the same
- Patent number 5,737,125
- Issue date Apr 7, 1998
- Olympus Optical Co., Ltd.
- Hitoshi Ohashi
- G02 - OPTICS
Information Patent Grant
Illuminating optical system for use in projecting exposure device
- Patent number 5,695,274
- Issue date Dec 9, 1997
- Olympus Optical Co., Ltd.
- Yasuhiro Kamihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY