Ryoichi YONEYAMA

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Hokuto-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electro-optical device having a concave recess formed above a subst...
- Patent number 6,897,932
- Issue date May 24, 2005
- Seiko Epson Corporation
- Masao Murade
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electro-optical apparatus having faces holding electro-optical mate...
- Patent number 6,611,301
- Issue date Aug 26, 2003
- Seiko Epson Corporation
- Masao Murade
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electro-optical apparatus having faces holding electro-optical mate...
- Patent number 6,433,841
- Issue date Aug 13, 2002
- Seiko Epson Corporation
- Masao Murade
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
DETECTION DEVICE, ELECTRONIC APPARATUS, AND ROBOT
- Publication number 20140318270
- Publication date Oct 30, 2014
- Ryoichi YONEYAMA
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
DETECTION DEVICE, ELECTRONIC APPARATUS, AND ROBOT
- Publication number 20120198945
- Publication date Aug 9, 2012
- SEIKO EPSON CORPORATION
- Ryoichi YONEYAMA
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
Electro-optical apparatus having faces holding electro-optical mate...
- Publication number 20030184705
- Publication date Oct 2, 2003
- SEIKO EPSON CORPORATION
- Masao Murade
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Electro-optical apparatus having faces holding electro-optical mate...
- Publication number 20020145683
- Publication date Oct 10, 2002
- SEIKO EPSON CORPORATION
- Masao Murade
- G02 - OPTICS