Membership
Tour
Register
Log in
Junichi Asada
Follow
Person
Hyogo, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Recorder and player apparatus stably keeping track of recording medium
Patent number
9,911,449
Issue date
Mar 6, 2018
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Kazuo Momoo
G11 - INFORMATION STORAGE
Information
Patent Grant
Objective lens, optical head, optical disk device, and information...
Patent number
8,797,834
Issue date
Aug 5, 2014
Panasonic Corporation
Fumitomo Yamasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Objective lens, optical head, optical disk apparatus, and informati...
Patent number
8,432,782
Issue date
Apr 30, 2013
Panasonic Corporation
Fumitomo Yamasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc device
Patent number
8,045,432
Issue date
Oct 25, 2011
Panasonic Corporation
Seiji Nishiwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information processor and optical element
Patent number
6,930,972
Issue date
Aug 16, 2005
Matsushita Electric Industrial Co., Ltd.
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information processor and optical element
Patent number
6,920,101
Issue date
Jul 19, 2005
Matsushita Electric Industrial, Co., Ltd.
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head apparatus
Patent number
6,914,870
Issue date
Jul 5, 2005
Matsushita Electric Industrial Co., Ltd.
Junichi Asada
G11 - INFORMATION STORAGE
Information
Patent Grant
Beam-shaping device, optical disc device, and fabrication method of...
Patent number
6,898,010
Issue date
May 24, 2005
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical information processor and optical element
Patent number
6,888,787
Issue date
May 3, 2005
Matsushita Electric Industrial Co., Ltd.
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information processor and optical element
Patent number
6,819,647
Issue date
Nov 16, 2004
Matsushita Electric Industrial Co., Ltd.
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head apparatus
Patent number
6,674,709
Issue date
Jan 6, 2004
Matsushita Electric Industrial Co., Ltd.
Junichi Asada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information processor and optical element
Patent number
6,618,343
Issue date
Sep 9, 2003
Matsushita Electric Industrial Co., Ltd.
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical element, optical pickup, information recording and reproduc...
Patent number
6,594,042
Issue date
Jul 15, 2003
Matsushita Electric Industrial Co., Ltd.
Junichi Asada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup
Patent number
6,496,453
Issue date
Dec 17, 2002
Matsushita Electric Industrial Co., Ltd.
Junichi Asada
G11 - INFORMATION STORAGE
Information
Patent Grant
Exposure equipment
Patent number
5,745,221
Issue date
Apr 28, 1998
Matsushita Electric Industrial, Co., Ltd.
Seiji Nishiwaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Wavelength locking device, beam collimating device, and optical dis...
Patent number
5,684,900
Issue date
Nov 4, 1997
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G02 - OPTICS
Information
Patent Grant
Light beam splitting apparatus
Patent number
5,495,462
Issue date
Feb 27, 1996
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G02 - OPTICS
Information
Patent Grant
Scanning laser microscope with photo coupling and detecting unit
Patent number
5,343,038
Issue date
Aug 30, 1994
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G02 - OPTICS
Information
Patent Grant
Optical disk drive
Patent number
5,313,450
Issue date
May 17, 1994
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Exposure apparatus
Patent number
5,307,184
Issue date
Apr 26, 1994
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G02 - OPTICS
Information
Patent Grant
Optical head apparatus including a waveguide layer with concentric...
Patent number
5,200,939
Issue date
Apr 6, 1993
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Light deflecting device
Patent number
5,193,130
Issue date
Mar 9, 1993
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G02 - OPTICS
Information
Patent Grant
Optical coupling apparatus for introducing and coupling an incident...
Patent number
5,181,265
Issue date
Jan 19, 1993
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G02 - OPTICS
Information
Patent Grant
Optical disk apparatus for recording and reproducing ultra-high den...
Patent number
5,159,650
Issue date
Oct 27, 1992
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Twisted nematic polarizing element with a concentric circle orienta...
Patent number
5,142,394
Issue date
Aug 25, 1992
Matsushita Electric Industrial Co., Ltd.
Junichi Asada
G02 - OPTICS
Information
Patent Grant
Projection type liquid cyrstal display device
Patent number
4,989,954
Issue date
Feb 5, 1991
Matsushita Electric Industrial Co., Ltd.
Kazuo Yokoyama
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
RECORDER AND PLAYER APPARATUS STABLY KEEPING TRACK OF RECORDING MEDIUM
Publication number
20170263280
Publication date
Sep 14, 2017
Panasonic Intellectual Property Management Co., Ltd.
Kazuo MOMOO
G11 - INFORMATION STORAGE
Information
Patent Application
OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK DEVICE, AND INFORMATION...
Publication number
20130064057
Publication date
Mar 14, 2013
Fumitomo Yamasaki
G02 - OPTICS
Information
Patent Application
OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATI...
Publication number
20120182852
Publication date
Jul 19, 2012
Fumitomo Yamasaki
G02 - OPTICS
Information
Patent Application
OPTICAL DISC DEVICE
Publication number
20090279403
Publication date
Nov 12, 2009
PANASONIC CORPORATION
Seiji Nishiwaki
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISC DEVICE
Publication number
20090028036
Publication date
Jan 29, 2009
Matsushita Electric Industrial Co., Ltd.
Seiji Nishiwaki
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup
Publication number
20040170109
Publication date
Sep 2, 2004
Matsushita Electric Industrial Co., Ltd.
Junichi Asada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information processor and optical element
Publication number
20040105375
Publication date
Jun 3, 2004
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical head apparatus
Publication number
20040071072
Publication date
Apr 15, 2004
Junichi Asada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information processor and optical element
Publication number
20040008606
Publication date
Jan 15, 2004
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information processor and optical element
Publication number
20040008603
Publication date
Jan 15, 2004
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information processor and optical element
Publication number
20040008604
Publication date
Jan 15, 2004
Youichi Saitoh
G11 - INFORMATION STORAGE
Information
Patent Application
Beam-shaping device, optical disc device, and fabrication method of...
Publication number
20030063265
Publication date
Apr 3, 2003
Seiji Nishiwaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical element, optical pickup, information recording and reproduc...
Publication number
20020114073
Publication date
Aug 22, 2002
Junichi Asada
G02 - OPTICS
Information
Patent Application
Optical pickup
Publication number
20010028625
Publication date
Oct 11, 2001
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Junichi Asada
G11 - INFORMATION STORAGE