Iwao Yokoyama

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Complex optical element and method for manufacturing thereof
- Patent number 7,196,854
- Issue date Mar 27, 2007
- Fujinon Sano Corporation
- Keiji Komiya
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
IMAGING FILTER
- Publication number 20090244711
- Publication date Oct 1, 2009
- Fujinon Corporation
- Iwao Yokoyama
- G02 - OPTICS
Information Patent Application
Method for manufacturing optical elements
- Publication number 20060073273
- Publication date Apr 6, 2006
- FUJINON SANO CORPORATION
- Iwao Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Complex optical element and method for manufacturing thereof
- Publication number 20050083586
- Publication date Apr 21, 2005
- SANO FUJI KOKI CO., LTD.
- Keiji Komiya
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL