Hiroshi Fukuzawa

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spherical lens surface processing method and spherical lens surface...
- Patent number 11,358,250
- Issue date Jun 14, 2022
- KOJIMA ENGINEERING CO., LTD.
- Hideo Kojima
- B24 - GRINDING POLISHING
Information Patent Grant
Lens-centering method for spherical center-type processing machine,...
- Patent number 10,124,459
- Issue date Nov 13, 2018
- Kojima Engineering Co., Ltd.
- Hideo Kojima
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
SPHERICAL LENS SURFACE PROCESSING METHOD AND SPHERICAL LENS SURFACE...
- Publication number 20210276139
- Publication date Sep 9, 2021
- Kojima Engineering Co., Ltd.
- Hideo Kojima
- B24 - GRINDING POLISHING
Information Patent Application
LENS-CENTERING METHOD FOR SPHERICAL CENTER-TYPE PROCESSING MACHINE,...
- Publication number 20170182622
- Publication date Jun 29, 2017
- KOJIMA ENGINEERING CO., LTD.
- Hideo KOJIMA
- B24 - GRINDING POLISHING
Information Patent Application
LENS SPHERICAL SURFACE GRINDING METHOD USING DISH-SHAPED GRINDSTONE
- Publication number 20120289127
- Publication date Nov 15, 2012
- Kojima Engineering Co., Ltd.
- Hideo Kojima
- B24 - GRINDING POLISHING
Information Patent Application
LENS-PROCESSING DEVICE
- Publication number 20120045975
- Publication date Feb 23, 2012
- Kojima Engineering Co., Ltd.
- Hideo Kojima
- B24 - GRINDING POLISHING