Tatsuya Fujiwara

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Matsudo-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Imaging lens
- Patent number 8,861,100
- Issue date Oct 14, 2014
- Seikoh Giken Co., Ltd.
- Tomomi Hirao
- G02 - OPTICS
Information Patent Grant
Ferrule heating apparatus and method of adhering ferrule and optica...
- Patent number 7,044,651
- Issue date May 16, 2006
- Seikoh Giken Co., Ltd.
- Tsuguo Satoh
- G02 - OPTICS
Information Patent Grant
Holder for optical fiber ferrule end face grinding apparatus
- Patent number 6,979,255
- Issue date Dec 27, 2005
- Seikoh Giken Co., Ltd.
- Kunio Yamada
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
IMAGING LENS
- Publication number 20130063828
- Publication date Mar 14, 2013
- SEIKOH GIKEN Co., Ltd.
- Tomomi Hirao
- G02 - OPTICS
Information Patent Application
Holder for optical fiber ferrule end face grinding apparatus
- Publication number 20040110455
- Publication date Jun 10, 2004
- Seikoh Giken Co., Ltd.
- Kunio Yamada
- B24 - GRINDING POLISHING
Information Patent Application
Ferrule heating apparatus and method of adhering ferrule and optica...
- Publication number 20040057674
- Publication date Mar 25, 2004
- SEIKOH GIKEN Co., Ltd.
- Tsuguo Satoh
- G02 - OPTICS