Manabu Ishikawa

Person

Sayama-Shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Mesa-type quartz-crystal vibrating piece and quartz crystal device
- Patent number 9,018,826
- Issue date Apr 28, 2015
- Nihon Dempa Kogyo Co., Ltd.
- Hiroyuki Sasaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal resonator and crystal oscillator
- Patent number 8,830,004
- Issue date Sep 9, 2014
- Nihon Dempa Kogyo Co., Ltd.
- Mitsuaki Koyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Piezoelectric vibrating pieces comprising edge mesa steps, and meth...
- Patent number 8,580,126
- Issue date Nov 12, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Hiroyuki Sasaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Quartz-crystal devices exhibiting reduced crystal impedance
- Patent number 8,541,928
- Issue date Sep 24, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Kenji Shimao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Mesa-type AT-cut quartz-crystal vibrating piece and quartz-crystal...
- Patent number 8,525,394
- Issue date Sep 3, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Manabu Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal device and inspection method of crystal device
- Patent number 8,519,601
- Issue date Aug 27, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Kenji Shimao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Piezoelectric vibrating pieces and devices, and methods for manufac...
- Patent number 8,415,858
- Issue date Apr 9, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Manabu Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Mesa-type at-cut quartz-crystal vibrating piece and the quartz-crys...
- Patent number 8,405,286
- Issue date Mar 26, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Kenji Shimao
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
CRYSTAL RESONATOR
- Publication number 20140175944
- Publication date Jun 26, 2014
- NIHON DEMPA KOGYO CO., LTD.
- MITSUAKI KOYAMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SELF-OSCILLATION CIRCUIT
- Publication number 20140125422
- Publication date May 8, 2014
- NIHON DEMPA KOGYO CO., LTD.
- MITSUAKI KOYAMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PIEZOELECTRIC RESONATOR, ETCHING AMOUNT DETECTING DEVICE, AND OSCIL...
- Publication number 20140041454
- Publication date Feb 13, 2014
- NIHON DEMPA KOGYO CO., LTD.
- MITSUAKI KOYAMA
- G01 - MEASURING TESTING
Information Patent Application
MESA-TYPE QUARTZ-CRYSTAL VIBRATING PIECE AND QUARTZ CRYSTAL DEVICE
- Publication number 20130043771
- Publication date Feb 21, 2013
- NIHON DEMPA KOGYO CO., LTD.
- HIROYUKI SASAKI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CRYSTAL RESONATOR AND CRYSTAL OSCILLATOR
- Publication number 20130027141
- Publication date Jan 31, 2013
- NIHON DEMPA KOGYO CO., LTD.
- MITSUAKI KOYAMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
QUARTZ-CRYSTAL DEVICES EXHIBITING REDUCED CRYSTAL IMPEDANCE
- Publication number 20120242193
- Publication date Sep 27, 2012
- Nihon Dempa Kogyo Co., Ltd.
- Kenji SHIMAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CRYSTAL DEVICE AND INSPECTION METHOD OF CRYSTAL DEVICE
- Publication number 20120242195
- Publication date Sep 27, 2012
- NIHON DEMPA KOGYO CO., LTD.
- KENJI SHIMAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Mesa-Type At-Cut Quartz-Crystal Vibrating Piece and Quartz-Crystal...
- Publication number 20120056514
- Publication date Mar 8, 2012
- NIHON DEMPA KOGYO CO., LTD.
- Manabu Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Mesa-Type At-Cut Quartz-Crystal Vibrating Piece and the Quartz-Crys...
- Publication number 20120032563
- Publication date Feb 9, 2012
- NIHON DEMPA KOGYO CO., LTD.
- Kenji Shimao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PIEZOELECTRIC VIBRATING PIECES AND DEVICES, AND METHODS FOR MANUFAC...
- Publication number 20110227457
- Publication date Sep 22, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Manabu Ishikawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PIEZOELECTRIC VIBRATING PIECES COMPRISING EDGE MESA STEPS, AND METH...
- Publication number 20110203083
- Publication date Aug 25, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Hiroyuki Sasaki
- H03 - BASIC ELECTRONIC CIRCUITRY

Manabu Ishikawa

Person

Patents Grantslast 30 patents

Mesa-type quartz-crystal vibrating piece and quartz crystal device

Crystal resonator and crystal oscillator

Piezoelectric vibrating pieces comprising edge mesa steps, and meth...

Quartz-crystal devices exhibiting reduced crystal impedance

Mesa-type AT-cut quartz-crystal vibrating piece and quartz-crystal...

Crystal device and inspection method of crystal device

Piezoelectric vibrating pieces and devices, and methods for manufac...

Mesa-type at-cut quartz-crystal vibrating piece and the quartz-crys...

Patents Applicationslast 30 patents

CRYSTAL RESONATOR

SELF-OSCILLATION CIRCUIT

PIEZOELECTRIC RESONATOR, ETCHING AMOUNT DETECTING DEVICE, AND OSCIL...

MESA-TYPE QUARTZ-CRYSTAL VIBRATING PIECE AND QUARTZ CRYSTAL DEVICE

CRYSTAL RESONATOR AND CRYSTAL OSCILLATOR

QUARTZ-CRYSTAL DEVICES EXHIBITING REDUCED CRYSTAL IMPEDANCE

CRYSTAL DEVICE AND INSPECTION METHOD OF CRYSTAL DEVICE

Mesa-Type At-Cut Quartz-Crystal Vibrating Piece and Quartz-Crystal...

Mesa-Type At-Cut Quartz-Crystal Vibrating Piece and the Quartz-Crys...

PIEZOELECTRIC VIBRATING PIECES AND DEVICES, AND METHODS FOR MANUFAC...

PIEZOELECTRIC VIBRATING PIECES COMPRISING EDGE MESA STEPS, AND METH...