Kazuhiro Naganuma

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Bendable portion of endoscope
- Patent number 5,860,914
- Issue date Jan 19, 1999
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Toru Chiba
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Bendable portion of endoscope
- Patent number 5,577,992
- Issue date Nov 26, 1996
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Toru Chiba
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Projection lens system
- Patent number 5,388,003
- Issue date Feb 7, 1995
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazuhiro Naganuma
- G02 - OPTICS
Information Patent Grant
Lens having a surface treating composition for reflection preventin...
- Patent number 5,144,485
- Issue date Sep 1, 1992
- Asahi Kogaku Kogyo K.K.
- Shinji Ninomiya
- G02 - OPTICS