Masahiro Tsumura

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Hamadera-minami-machi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic touch position sensor using a low acoustic loss transparen...
- Patent number 6,441,809
- Issue date Aug 27, 2002
- Elo Touchsystems, Inc.
- Joel Kent
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Acoustic touch position sensor using a low acoustic loss transparen...
- Patent number 6,236,391
- Issue date May 22, 2001
- Elo Touchsystems, Inc.
- Joel Kent
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Acoustic Touch Sensor with Low Profile Diffractive Grating Transduc...
- Publication number 20070268276
- Publication date Nov 22, 2007
- Joel C. Kent
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Acoustic touch sensor
- Publication number 20050248548
- Publication date Nov 10, 2005
- Masahiro Tsumura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Acoustic touch position sensor using a low acoustic loss transparen...
- Publication number 20010033275
- Publication date Oct 25, 2001
- Joel Kent
- G06 - COMPUTING CALCULATING COUNTING