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Akio Chiba
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Sayama-shi, JP
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last 30 patents
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Patent Grant
Quartz crystal element made of double-rotation Y-cut quartz crystal...
Patent number
7,863,802
Issue date
Jan 4, 2011
Nihon Dempa Kogyo Co., Ltd.
Akio Chiba
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of manufacturing thin quartz crystal wafer
Patent number
7,174,620
Issue date
Feb 13, 2007
Nihon Dempa Kogyo Co., Ltd.
Akio Chiba
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Surface mount crystal unit and surface mount crystal oscillator
Patent number
7,034,441
Issue date
Apr 25, 2006
Nihon Dempa Kogyo Co., Ltd.
Kozo Ono
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Tuning fork type crystal unit and bar type crystal unit
Patent number
6,930,440
Issue date
Aug 16, 2005
Nihon Dempa Kogyo Co., Ltd.
Akio Chiba
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Load sensor with use of crystal resonator
Patent number
6,880,407
Issue date
Apr 19, 2005
Yamata Scale Co., Ltd.
Masami Yamanaka
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
QUARTZ CRYSTAL ELEMENT MADE OF DOUBLE-ROTATION Y-CUT QUARTZ CRYSTAL...
Publication number
20090102326
Publication date
Apr 23, 2009
NIHON DEMPA KOGYO CO., LTD.
Akio Chiba
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Load sensor with use of crystal resonator
Publication number
20050139016
Publication date
Jun 30, 2005
Yamato Scale Co., Ltd.
Masami Yamanaka
G01 - MEASURING TESTING
Information
Patent Application
Method of manufacturing thin quartz crystal wafer
Publication number
20040135467
Publication date
Jul 15, 2004
Nihon Dempa Kogyo Co., Ltd.
Akio Chiba
C30 - CRYSTAL GROWTH
Information
Patent Application
Surface mount crystal unit and surface mount crystal oscillator
Publication number
20040095199
Publication date
May 20, 2004
Kozo Ono
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Tuning fork type crystal unit and bar type crystal unit
Publication number
20040085004
Publication date
May 6, 2004
Nihon Dempa Kogyo Co., Ltd.
Akio Chiba
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Load sensor with use of crystal resonator
Publication number
20030006853
Publication date
Jan 9, 2003
Masami Yamanaka
G01 - MEASURING TESTING
Information
Patent Application
Load sensor employing a crystal unit
Publication number
20020078762
Publication date
Jun 27, 2002
NIHON DEMPA KOGYO CO., LTD.
Akio Chiba
G01 - MEASURING TESTING