Hiroshi Toyoda

Person

Yokkaichi-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical recording medium, recording and reproducing method thereof,...
- Patent number 7,710,855
- Issue date May 4, 2010
- Ricoh Company, Ltd.
- Tohru Yashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Photopolymerizable composition
- Patent number 7,368,224
- Issue date May 6, 2008
- Kyowa Hakko Chemical Co., Ltd.
- Tsuguo Yamaoka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Filters of electronic displays
- Patent number 7,242,542
- Issue date Jul 10, 2007
- Kyowa Hakko Chemical Co., Ltd.
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Squarylium-metal chelate compounds and optical recording media
- Patent number 7,223,521
- Issue date May 29, 2007
- Ricoh Company, Ltd.
- Tohru Yashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium, and method and device using the same
- Patent number 6,936,323
- Issue date Aug 30, 2005
- Ricoh Company, Ltd.
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Filters for electronic display device
- Patent number 6,818,262
- Issue date Nov 16, 2004
- Kyowa Yuka Co., Ltd.
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optical recording medium, optical recording method and optical reco...
- Patent number 6,794,005
- Issue date Sep 21, 2004
- Ricoh Company, Ltd.
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium, optical recording method and optical reco...
- Patent number 6,737,143
- Issue date May 18, 2004
- Ricoh Company Ltd.
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Metal complex type squarylium compounds and optical recording media...
- Patent number 6,660,867
- Issue date Dec 9, 2003
- Kyowa Hakko Kogyo Co., Ltd.
- Ikuo Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Squarylium compounds and optical recording media using the same
- Patent number 6,599,605
- Issue date Jul 29, 2003
- Kyowa Hakko Kogyo Co., Ltd.
- Ikuo Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Squarylium compounds and optical recording medium containing the same
- Patent number 6,596,364
- Issue date Jul 22, 2003
- Kyowa Hakko Kogyo Co., Ltd.
- Ikuo Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and optical recording and reading method u...
- Patent number 6,558,768
- Issue date May 6, 2003
- Ricoh Company, Ltd.
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione
- Patent number 6,331,653
- Issue date Dec 18, 2001
- Kyowa Yuka Co., Ltd.
- Shoshiro Matsushita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione
- Patent number 5,808,166
- Issue date Sep 15, 1998
- Kyowa Yuka Co., Ltd.
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photopolymerizable composition containing squarylium compound
- Patent number 5,681,685
- Issue date Oct 28, 1997
- Kyowa Hakko Kogyo Co., Ltd.
- Tsuguo Yamaoka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optical information recording medium using a squarylium compound
- Patent number 5,660,970
- Issue date Aug 26, 1997
- Kyowa Hakko Kogyo Co., Ltd.
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Squarylium compound and optical information recording medium using...
- Patent number 5,391,741
- Issue date Feb 21, 1995
- Kyowa Hakko Kogyo Co., Ltd.
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Optical recording medium, and optical recording method and optical...
- Publication number 20090135706
- Publication date May 28, 2009
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical Recording Medium, Recording and Reproducing Method Thereof,...
- Publication number 20080316890
- Publication date Dec 25, 2008
- Tohru Yashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Filters of electronic displays
- Publication number 20060063864
- Publication date Mar 23, 2006
- KYOWA HAKKO CHEMICAL CO., LTD
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Photopolymerizable composition
- Publication number 20050164120
- Publication date Jul 28, 2005
- KYOWA HAKKO CHEMICAL CO., LTD.
- Tsuguo Yamaoka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Optical recording medium, and method and device using the same
- Publication number 20040265645
- Publication date Dec 30, 2004
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Squarylium-metal chelate compounds and optical recording media
- Publication number 20040202098
- Publication date Oct 14, 2004
- Tohru Yashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium, optical recording method and optical reco...
- Publication number 20030206514
- Publication date Nov 6, 2003
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Metal complex type squarylium compounds and optical recording media...
- Publication number 20030187272
- Publication date Oct 2, 2003
- Ikuo Shimizu
- G11 - INFORMATION STORAGE
Information Patent Application
Filters for electronic display device
- Publication number 20030165640
- Publication date Sep 4, 2003
- Kyowa Yuka Co., Ltd.
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Optical recording medium, optical recording method and optical reco...
- Publication number 20030157291
- Publication date Aug 21, 2003
- Ricoh Company, Ltd.
- Soh Noguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Squarylium compounds and optical recording media using the same
- Publication number 20030082329
- Publication date May 1, 2003
- Ikuo Shimizu
- G11 - INFORMATION STORAGE
Information Patent Application
Squarylium compounds and optical recording medium containing the same
- Publication number 20030082330
- Publication date May 1, 2003
- Ikuo Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Optical recording medium and optical recording and reading method u...
- Publication number 20010044001
- Publication date Nov 22, 2001
- Soh Noguchi
- G11 - INFORMATION STORAGE

Hiroshi Toyoda

Person

Patents Grantslast 30 patents

Optical recording medium, recording and reproducing method thereof,...

Photopolymerizable composition

Filters of electronic displays

Squarylium-metal chelate compounds and optical recording media

Optical recording medium, and method and device using the same

Filters for electronic display device

Optical recording medium, optical recording method and optical reco...

Optical recording medium, optical recording method and optical reco...

Metal complex type squarylium compounds and optical recording media...

Squarylium compounds and optical recording media using the same

Squarylium compounds and optical recording medium containing the same

Optical recording medium and optical recording and reading method u...

Process for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione

Method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione

Photopolymerizable composition containing squarylium compound

Optical information recording medium using a squarylium compound

Squarylium compound and optical information recording medium using...

Patents Applicationslast 30 patents

Optical recording medium, and optical recording method and optical...

Optical Recording Medium, Recording and Reproducing Method Thereof,...

Filters of electronic displays

Photopolymerizable composition

Optical recording medium, and method and device using the same

Squarylium-metal chelate compounds and optical recording media

Optical recording medium, optical recording method and optical reco...

Metal complex type squarylium compounds and optical recording media...

Filters for electronic display device

Optical recording medium, optical recording method and optical reco...

Squarylium compounds and optical recording media using the same

Squarylium compounds and optical recording medium containing the same

Optical recording medium and optical recording and reading method u...