Toshiaki Yamada

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Tsurugashima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Diaphragm control apparatus of interchangeable lens camera
- Patent number 8,947,586
- Issue date Feb 3, 2015
- Pentax Ricoh Imaging Company, Ltd.
- Toshiaki Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Heat resistant, low dielectric polymers, and films, substrates, ele...
- Patent number 6,500,535
- Issue date Dec 31, 2002
- TDK Corporation
- Toshiaki Yamada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dust core, ferromagnetic powder composition therefor, and method of...
- Patent number 6,102,980
- Issue date Aug 15, 2000
- TDK Corporation
- Masami Endo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Novel 2-substituted-4,6-diamino-s-triazine/isocyanuric acid adduct,...
- Patent number 4,658,009
- Issue date Apr 14, 1987
- Shikoku Chemicals Corporation
- Kazuo Kamagata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Epoxy resin composition
- Patent number 4,593,069
- Issue date Jun 3, 1986
- Shikoku Chemicals Corp.
- Kazuo Kamagata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
DIAPHRAGM CONTROL APPARATUS OF INTERCHANGEABLE LENS CAMERA
- Publication number 20130242176
- Publication date Sep 19, 2013
- Pentax Ricoh Imaging Company, Ltd.
- Toshiaki YAMADA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION COMMUNICATION SYSTEM AND METHOD
- Publication number 20080242223
- Publication date Oct 2, 2008
- Toshiaki YAMADA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE