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Tsuyoshi Maro
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Kyoto, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical apparatus, method for manufacturing optical apparatus, and...
Patent number
11,865,964
Issue date
Jan 9, 2024
MAXELL, LTD.
Tsuyoshi Maro
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Imaging module for biometrics authentication, biometrics authentica...
Patent number
8,027,519
Issue date
Sep 27, 2011
Hitachi Maxwell, Ltd.
Tsuyoshi Maro
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Camera module
Patent number
7,988,371
Issue date
Aug 2, 2011
Hitachi Maxell, Ltd.
Susumu Aoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength multiplexer/demultiplexing device
Patent number
7,389,050
Issue date
Jun 17, 2008
Hitachi Maxell, Ltd.
Yoshiaki Minakawa
G02 - OPTICS
Information
Patent Grant
Wavelength division multiplexer
Patent number
7,079,322
Issue date
Jul 18, 2006
Hitachi Maxell, Ltd.
Yoshiaki Minakawa
G02 - OPTICS
Information
Patent Grant
Optical disk, disk substrate, and drive
Patent number
7,027,385
Issue date
Apr 11, 2006
Hitachi Maxell, Ltd.
Katsusuke Shimazaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical head having heat sink layer
Patent number
6,781,926
Issue date
Aug 24, 2004
Hitachi Maxell, Limited
Osamu Ishizaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical storage apparatus having the relation between numer...
Patent number
6,760,279
Issue date
Jul 6, 2004
Hitachi Maxell, Ltd.
Tsuyoshi Maro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium with solid protective layer having self-lu...
Patent number
6,366,541
Issue date
Apr 2, 2002
Hitachi Maxell, Ltd.
Satoru Ohnuki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical recording medium, optical head, and optical recording device
Patent number
6,333,900
Issue date
Dec 25, 2001
Hitachi Maxell, Ltd.
Tsuyoshi Maro
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for information recording disk, mold and stamper for inje...
Patent number
6,333,089
Issue date
Dec 25, 2001
Hitachi Maxwell, Ltd.
Hiroyuki Hirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording disk and producing method therefor
Patent number
6,319,580
Issue date
Nov 20, 2001
Hitachi Maxell, Ltd.
Tatsuo Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium, optical head and optical recording device
Patent number
6,217,968
Issue date
Apr 17, 2001
Hitachi Maxell, Ltd.
Tsuyoshi Maro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and optical recording device
Patent number
6,160,769
Issue date
Dec 12, 2000
Hitachi Maxell, Ltd.
Satoru Ohnuki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Substrate for information recording disk, mold and stamper for inje...
Patent number
6,127,017
Issue date
Oct 3, 2000
Hitachi Maxell, Ltd.
Hiroyuki Hirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
6,027,801
Issue date
Feb 22, 2000
Hitachi Maxell, Ltd.
Tsuyoshi Maro
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
5,068,152
Issue date
Nov 26, 1991
Hitachi Maxell, Ltd.
Tsuyoshi Maro
G11 - INFORMATION STORAGE
Information
Patent Grant
Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms
Patent number
5,059,337
Issue date
Oct 22, 1991
Hitachi Maxell, Ltd.
Tsuyoshi Maro
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Magnetic recording medium and process for preparing the same
Patent number
4,828,919
Issue date
May 9, 1989
Hitachi, Maxwell, Ltd.
Osamu Kitakami
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL APPARATUS, METHOD FOR MANUFACTURING OPTICAL APPARATUS, AND...
Publication number
20230139866
Publication date
May 4, 2023
MAXELL, LTD.
Tsuyoshi MARO
B60 - VEHICLES IN GENERAL
Information
Patent Application
A MICROWAVE OVEN COOKING UTENSIL AND A METHOD FOR MANUFACTURING THE...
Publication number
20220030675
Publication date
Jan 27, 2022
MAXELL, LTD.
Tsuyoshi MARO
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Application
IMAGING MODULE FOR BIOMETRICS AUTHENTICATION, BIOMETRICS AUTHENTICA...
Publication number
20110298911
Publication date
Dec 8, 2011
Tsuyoshi MARO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGING MODULE FOR BIOMETRICS AUTHENTICATION, BIOMETRICS AUTHENTICA...
Publication number
20080175444
Publication date
Jul 24, 2008
Hitachi Maxell, Ltd.
Tsuyoshi Maro
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Camera module
Publication number
20070183773
Publication date
Aug 9, 2007
Hitachi Maxell, Ltd.
Susumu Aoki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength division multiplexer
Publication number
20050094282
Publication date
May 5, 2005
Hitachi Maxell, Ltd.
Yoshiaki Minakawa
G02 - OPTICS
Information
Patent Application
Wavelength multiplexer/demultiplexing device
Publication number
20050063423
Publication date
Mar 24, 2005
Yoshiaki Minakawa
G02 - OPTICS
Information
Patent Application
Magneto-optical head having heat sink layer
Publication number
20040246877
Publication date
Dec 9, 2004
Hitachi Maxell, Ltd.
Osamu Ishizaki
G11 - INFORMATION STORAGE
Information
Patent Application
Magneto-optical head and magneto-optical recording apparatus includ...
Publication number
20020097639
Publication date
Jul 25, 2002
Hitachi Maxell, Ltd.
Osamu Ishizaki
G11 - INFORMATION STORAGE