Eiji Ozeki

Follow

Person

Nagoya, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multilayer type piezoelectric filter with intermediary printed circ...
- Patent number 6,225,877
- Issue date May 1, 2001
- NGK Spark Plug Co., Ltd.
- Eiji Ozeki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multielement-type piezoelectric filter with through-hole connection...
- Patent number 5,920,242
- Issue date Jul 6, 1999
- NGK Spark Plug Co., Ltd.
- Kanji Oya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ladder type piezoelectric filter including conductive rubber plates
- Patent number 5,717,366
- Issue date Feb 10, 1998
- NGK Spark Plug Co., Ltd.
- Eiji Ozeki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ladder-type electric filter apparatus and housing therefor
- Patent number 5,057,802
- Issue date Oct 15, 1991
- NGK Spark Plug Co., Ltd
- Eiji Ozeki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Piezoelectric transducer for transmitting or receiving ultrasonic w...
- Patent number 4,755,975
- Issue date Jul 5, 1988
- NGK Spark Plug Co., Ltd
- Toshiharu Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezoelectric ultrasonic transducer with porous plastic housing
- Patent number 4,556,814
- Issue date Dec 3, 1985
- NGK Spark Plug Co., Ltd
- Toshiharu Ito
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL