Masahiro Katagiri

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Glass substrate for magnetic disk and magnetic disk for heat assist...
- Patent number 9,728,217
- Issue date Aug 8, 2017
- HOYA GLASS DISK VIETNAM II LTD.
- Masayoshi Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for producing glass substrate for magnetic disk and method f...
- Patent number 9,038,417
- Issue date May 26, 2015
- Hoya Corporation
- Toshio Takizawa
- B24 - GRINDING POLISHING
Information Patent Grant
Method for producing glass substrate for magnetic disk and method f...
- Patent number 8,763,428
- Issue date Jul 1, 2014
- Hoya Corporation
- Toshio Takizawa
- B24 - GRINDING POLISHING
Information Patent Grant
Flame detector
- Patent number 8,201,973
- Issue date Jun 19, 2012
- Lixil Nittan Company, Limited
- Akihisa Kudoh
- G08 - SIGNALLING
Information Patent Grant
Method of grinding a substrate and method of manufacturing a glass...
- Patent number 6,615,613
- Issue date Sep 9, 2003
- Hoya Corporation
- Shozo Iwabuchi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MAGNETIC DISK FOR HEAT ASSIST...
- Publication number 20160254018
- Publication date Sep 1, 2016
- HOYA GLASS DISK VIETNAM II LTD.
- Masayoshi YOSHIDA
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR PRODUCING GLASS SUBSTRATE FOR MAGNETIC DISK AND METHOD F...
- Publication number 20140248424
- Publication date Sep 4, 2014
- HOYA CORPORATION
- Toshio Takizawa
- G11 - INFORMATION STORAGE
Information Patent Application
Flame Detector
- Publication number 20100073926
- Publication date Mar 25, 2010
- NITTAN COMPANY, LIMITED
- Akihisa Kudoh
- G08 - SIGNALLING
Information Patent Application
Method For Producing Glass Substrate For Magnetic Disk And Method F...
- Publication number 20090158775
- Publication date Jun 25, 2009
- HOYA CORPORATION
- Toshio Takizawa
- B24 - GRINDING POLISHING
Information Patent Application
Method of grinding a substrate and method of manufacturing a glass...
- Publication number 20040229003
- Publication date Nov 18, 2004
- Hoya Corporation
- Shozo Iwabuchi
- G11 - INFORMATION STORAGE
Information Patent Application
Method of grinding a substrate and method of manufacturing a glass...
- Publication number 20030205060
- Publication date Nov 6, 2003
- Hoya Corporation
- Shozo Iwabuchi
- G11 - INFORMATION STORAGE