Hirofumi Kawashima

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Quartz crystal resonator, quartz crystal unit, and quartz crystal o...
- Patent number 11,563,406
- Issue date Jan 24, 2023
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 11,005,420
- Issue date May 11, 2021
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Resonator, unit and oscillator
- Patent number 10,594,259
- Issue date Mar 17, 2020
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 10,284,143
- Issue date May 7, 2019
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Unit, oscillator and electronic apparatus
- Patent number 10,199,556
- Issue date Feb 5, 2019
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G04 - HOROLOGY
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 9,553,560
- Issue date Jan 24, 2017
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Unit, oscillator and electronic apparatus
- Patent number 9,431,957
- Issue date Aug 30, 2016
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Grant
Method for manufacturing a quartz crystal unit
- Patent number RE45829
- Issue date Dec 29, 2015
- Piedek Technical Laboratory
- Hirofumi Kawashima
- 001 -
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 9,209,381
- Issue date Dec 8, 2015
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for manufacturing quartz crystal resonator
- Patent number 9,203,135
- Issue date Dec 1, 2015
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for manufacturing a quartz crystal unit, quartz crystal osci...
- Patent number 9,077,308
- Issue date Jul 7, 2015
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for manufacturing a quartz crystal unit
- Patent number RE45582
- Issue date Jun 23, 2015
- Piedek Technical Laboratory
- Hirofumi Kawashima
- 001 -
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 8,866,567
- Issue date Oct 21, 2014
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for manufacturing quartz crystal unit, quartz crystal oscill...
- Patent number 8,806,738
- Issue date Aug 19, 2014
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Unit, oscillator and electronic apparatus
- Patent number 8,766,516
- Issue date Jul 1, 2014
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 8,749,124
- Issue date Jun 10, 2014
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and electronic appar...
- Patent number 8,614,537
- Issue date Dec 24, 2013
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for manufacturing quartz crystal unit and quartz crystal osc...
- Patent number 8,572,824
- Issue date Nov 5, 2013
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of manufacturing a quartz crystal unit
- Patent number RE44423
- Issue date Aug 13, 2013
- Piedek Technical Laboratory
- Hirofumi Kawashima
- 029 - Metal working
Information Patent Grant
Manufacturing method of a quartz crystal unit , a quartz crystal os...
- Patent number 8,375,559
- Issue date Feb 19, 2013
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Unit having resonator, oscillator having unit and electronic appara...
- Patent number 8,358,052
- Issue date Jan 22, 2013
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Unit, oscillator having unit and electronic apparatus having oscill...
- Patent number 8,358,053
- Issue date Jan 22, 2013
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Grant
Method for manufacturing a quartz crystal unit
- Patent number 8,240,023
- Issue date Aug 14, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quartz crystal unit, and manufacturing method of the same and manuf...
- Patent number 8,217,736
- Issue date Jul 10, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator having quartz crysta...
- Patent number 8,127,427
- Issue date Mar 6, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic apparatus having quartz crystal oscillating circuits
- Patent number 8,127,426
- Issue date Mar 6, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Manufacturing method of quartz crystal unit
- Patent number 8,122,587
- Issue date Feb 28, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for manufacturing a quartz crystal resonator, quartz crystal...
- Patent number 8,096,042
- Issue date Jan 17, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for manufacturing quartz crystal unit, quartz crystal oscill...
- Patent number 8,091,189
- Issue date Jan 10, 2012
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quartz crystal unit, quartz crystal oscillator and manufacturing me...
- Patent number 7,944,131
- Issue date May 17, 2011
- Piedek Technical Laboratory
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20190222174
- Publication date Jul 18, 2019
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20190068163
- Publication date Feb 28, 2019
- PIEDEK TECHNICAL LABORATORY
- Hirofumi KAWASHIMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RESONATOR, UNIT AND OSCILLATOR
- Publication number 20190068119
- Publication date Feb 28, 2019
- PIEDEK TECHNICAL LABORATORY
- Hirofumi KAWASHIMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20170093336
- Publication date Mar 30, 2017
- PIEDEK TECHNICAL LABORATORY
- Hirofumi KAWASHIMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
UNIT, OSCILLATOR AND ELECTRONIC APPARATUS
- Publication number 20170033767
- Publication date Feb 2, 2017
- PIEDEK TECHNICAL LABORATORY
- Hirofumi KAWASHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20150022062
- Publication date Jan 22, 2015
- PIEDEK TECHNICAL LABORATORY
- Hirofumi KAWASHIMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
UNIT, OSCILLATOR AND ELECTRONIC APPARATUS
- Publication number 20140251010
- Publication date Sep 11, 2014
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Application
METHOD FOR MANUFACTURING QUARTZ CRYSTAL RESONATOR, QUARTZ CRYSTAL U...
- Publication number 20140033489
- Publication date Feb 6, 2014
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20130176833
- Publication date Jul 11, 2013
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20130176832
- Publication date Jul 11, 2013
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20130176831
- Publication date Jul 11, 2013
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILL...
- Publication number 20130167341
- Publication date Jul 4, 2013
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...
- Publication number 20130169116
- Publication date Jul 4, 2013
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
UNIT, OSCILLATOR AND ELECTRONIC APPARATUS
- Publication number 20130125650
- Publication date May 23, 2013
- PIEDEK TECHNICAL LABORATORY
- Hirofumi Kawashima
- G01 - MEASURING TESTING
Information Patent Application
Method for manufacturing quartz crystal unit, quartz crystal oscill...
- Publication number 20120118852
- Publication date May 17, 2012
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for manufacturing quartz crystal resonator, quartz crystal u...
- Publication number 20110191996
- Publication date Aug 11, 2011
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Quartz crystal unit and manufacturing method of the same and manufa...
- Publication number 20110062832
- Publication date Mar 17, 2011
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electronic apparatus
- Publication number 20100308698
- Publication date Dec 9, 2010
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC APPARATUS
- Publication number 20100308699
- Publication date Dec 9, 2010
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Unit, oscillator having unit and electronic apparatus having oscill...
- Publication number 20100301958
- Publication date Dec 2, 2010
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G04 - HOROLOGY
Information Patent Application
Unit having resonator, oscillator having unit and electronic appara...
- Publication number 20100117492
- Publication date May 13, 2010
- Piedek Technical Laboratory
- Hirofumi Kawashima
- G04 - HOROLOGY
Information Patent Application
Electronic apparatus
- Publication number 20090261923
- Publication date Oct 22, 2009
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RESONATOR, UNIT HAVING RESONATOR, OSCILLATOR HAVING UNIT AND ELECTR...
- Publication number 20090257320
- Publication date Oct 15, 2009
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Electronic apparatus having display portion and oscillator and manu...
- Publication number 20090201061
- Publication date Aug 13, 2009
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electronic apparatus having display portion and oscillator and manu...
- Publication number 20090201062
- Publication date Aug 13, 2009
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Quartz crystal unit, quartz crystal oscillator having quartz crysta...
- Publication number 20090102327
- Publication date Apr 23, 2009
- Hirofumi Kawashima
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method for manufacturing quartz crystal resonator, quartz crystal u...
- Publication number 20090038131
- Publication date Feb 12, 2009
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electronic apparatus
- Publication number 20080284281
- Publication date Nov 20, 2008
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for manufacturing quartz crystal unit and electronic apparat...
- Publication number 20080282520
- Publication date Nov 20, 2008
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for manufacturing quartz crystal unit and electronic apparat...
- Publication number 20080282521
- Publication date Nov 20, 2008
- Hirofumi Kawashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hirofumi Kawashima

Person

Patents Grantslast 30 patents

Quartz crystal resonator, quartz crystal unit, and quartz crystal o...

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Resonator, unit and oscillator

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Unit, oscillator and electronic apparatus

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Unit, oscillator and electronic apparatus

Method for manufacturing a quartz crystal unit

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Method for manufacturing quartz crystal resonator

Method for manufacturing a quartz crystal unit, quartz crystal osci...

Method for manufacturing a quartz crystal unit

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Method for manufacturing quartz crystal unit, quartz crystal oscill...

Unit, oscillator and electronic apparatus

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Quartz crystal unit, quartz crystal oscillator and electronic appar...

Method for manufacturing quartz crystal unit and quartz crystal osc...

Method of manufacturing a quartz crystal unit

Manufacturing method of a quartz crystal unit , a quartz crystal os...

Unit having resonator, oscillator having unit and electronic appara...

Unit, oscillator having unit and electronic apparatus having oscill...

Method for manufacturing a quartz crystal unit

Quartz crystal unit, and manufacturing method of the same and manuf...

Quartz crystal unit, quartz crystal oscillator having quartz crysta...

Electronic apparatus having quartz crystal oscillating circuits

Manufacturing method of quartz crystal unit

Method for manufacturing a quartz crystal resonator, quartz crystal...

Method for manufacturing quartz crystal unit, quartz crystal oscill...

Quartz crystal unit, quartz crystal oscillator and manufacturing me...

Patents Applicationslast 30 patents

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

RESONATOR, UNIT AND OSCILLATOR

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

UNIT, OSCILLATOR AND ELECTRONIC APPARATUS

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

UNIT, OSCILLATOR AND ELECTRONIC APPARATUS

METHOD FOR MANUFACTURING QUARTZ CRYSTAL RESONATOR, QUARTZ CRYSTAL U...

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

METHOD FOR MANUFACTURING QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILL...

QUARTZ CRYSTAL UNIT, QUARTZ CRYSTAL OSCILLATOR AND ELECTRONIC APPAR...

UNIT, OSCILLATOR AND ELECTRONIC APPARATUS

Method for manufacturing quartz crystal unit, quartz crystal oscill...

Method for manufacturing quartz crystal resonator, quartz crystal u...

Quartz crystal unit and manufacturing method of the same and manufa...

Electronic apparatus

ELECTRONIC APPARATUS

Unit, oscillator having unit and electronic apparatus having oscill...

Unit having resonator, oscillator having unit and electronic appara...

Electronic apparatus

RESONATOR, UNIT HAVING RESONATOR, OSCILLATOR HAVING UNIT AND ELECTR...

Electronic apparatus having display portion and oscillator and manu...

Electronic apparatus having display portion and oscillator and manu...

Quartz crystal unit, quartz crystal oscillator having quartz crysta...

Method for manufacturing quartz crystal resonator, quartz crystal u...

Electronic apparatus

Method for manufacturing quartz crystal unit and electronic apparat...

Method for manufacturing quartz crystal unit and electronic apparat...