Hisashi Kasahara

Follow

Person

Shinjuku-ku, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Mask blank glass substrate, mask blank glass substrate manufacturin...
- Patent number 8,048,591
- Issue date Nov 1, 2011
- Hoya Corporation
- Hisashi Kasahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photomask manufacturing method
- Patent number 8,021,804
- Issue date Sep 20, 2011
- Hoya Corporation
- Yasushi Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Mask blank glass substrate manufacturing method, mask blank manufac...
- Patent number 7,955,763
- Issue date Jun 7, 2011
- Hoya Corporation
- Akinori Kurikawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Mask blank glass substrate manufacturing method, mask blank manufac...
- Patent number 7,851,108
- Issue date Dec 14, 2010
- Hoya Corporation
- Akinori Kurikawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
MASK BLANK GLASS SUBSTRATE MANUFACTURING METHOD, MASK BLANK MANUFAC...
- Publication number 20110059390
- Publication date Mar 10, 2011
- HOYA CORPORATION
- Akinori Kurikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHOTOMASK MANUFACTURING METHOD
- Publication number 20090325083
- Publication date Dec 31, 2009
- HOYA CORPORATION
- Yasushi Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MASK BLANK GLASS SUBSTRATE, MASK BLANK GLASS SUBSTRATE MANUFACTURIN...
- Publication number 20090317729
- Publication date Dec 24, 2009
- HOYA CORPORATION
- Hisashi Kasahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Mask blank glass substrate manufacturing method, mask blank manufac...
- Publication number 20060246361
- Publication date Nov 2, 2006
- Hoya Corporation
- Akinori Kurikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY