Hiroshi Kawahara

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric device and method for manufacturing same
- Patent number 8,610,337
- Issue date Dec 17, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Hiroshi Kawahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Methods for manufacturing piezoelectric vibrating pieces
- Patent number 8,429,800
- Issue date Apr 30, 2013
- Nihon Dempa Kogyo Co., Ltd.
- Hiroshi Kawahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Piezoelectric vibrating devices and methods for manufacturing same
- Patent number 8,089,200
- Issue date Jan 3, 2012
- Nihon Dempa Kogyo Co., Ltd.
- Hiroshi Kawahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transaction adjusting device
- Patent number 7,587,328
- Issue date Sep 8, 2009
- LNG JAPAN Corporation
- Hiroshi Kawahara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Surface acoustic wave device
- Patent number 7,067,963
- Issue date Jun 27, 2006
- Nihon Dempa Kogyo Co., Ltd.
- Tadaaki Tsuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical disc and method for manufacturing the same
- Patent number 7,014,902
- Issue date Mar 21, 2006
- TDK Corporation
- Narutoshi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc and method for manufacturing the same
- Patent number 7,008,683
- Issue date Mar 7, 2006
- TDK Corporation
- Narutoshi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc and method for manufacturing the same
- Patent number 7,008,682
- Issue date Mar 7, 2006
- TDK Corporation
- Narutoshi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Surface acoustic wave filter and surface acoustic wave filter appar...
- Patent number 6,750,592
- Issue date Jun 15, 2004
- NRS Technologies, Inc.
- Yoshihiro Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Saw filter device and package for accommodating the same
- Patent number 6,720,845
- Issue date Apr 13, 2004
- NRS Technologies Inc.
- Yoshihiro Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Functional film having specific surface dispersion ratio
- Patent number 6,605,341
- Issue date Aug 12, 2003
- TDK Corporation
- Kiminori Tamai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Electronic part and method of assembling the same
- Patent number 6,518,501
- Issue date Feb 11, 2003
- NRS Technologies Inc.
- Hiroshi Kawahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic disk apparatus with protective films
- Patent number 5,808,833
- Issue date Sep 15, 1998
- NEC Corporation
- Toshihiko Motomatsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Overcoat magnetic head slider having overcoat and magnetic disk device
- Patent number 5,805,380
- Issue date Sep 8, 1998
- NEC Corporation
- Yuji Ishihara
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Magnetic recording media and method for making them
- Patent number 5,532,041
- Issue date Jul 2, 1996
- TDK Corporation
- Yoshihiro Honjo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media having two magnetic layers; the first for...
- Patent number 5,043,210
- Issue date Aug 27, 1991
- TDK Corporation
- Yoshisuke Yamakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,460,653
- Issue date Jul 17, 1984
- TDK Corporation
- Hitoshi Azegami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,431,702
- Issue date Feb 14, 1984
- TDK Electronics Co., Ltd.
- Hiroshi Kawahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,423,453
- Issue date Dec 27, 1983
- TDK Electronics Co., Ltd.
- Hiroshi Kawahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,414,288
- Issue date Nov 8, 1983
- TDK Electronics Co., Ltd.
- Hiroshi Kawahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,410,590
- Issue date Oct 18, 1983
- TDK Electronics Co., Ltd.
- Hiroshi Kawahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,391,877
- Issue date Jul 5, 1983
- TDK Electronics Co., Ltd.
- Fujio Shibata
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,370,383
- Issue date Jan 25, 1983
- TDK Electronics Co., Ltd.
- Hiroshi Kawahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,367,263
- Issue date Jan 4, 1983
- TDK Electronics Co., Ltd.
- Hiroshi Kawahara
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
PIEZOELECTRIC DEVICE AND METHOD FOR FABRICATING THE SAME
- Publication number 20160164490
- Publication date Jun 9, 2016
- NIHON DEMPA KOGYO CO., LTD.
- ATSUSHI KAMIJO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING SAME
- Publication number 20110309720
- Publication date Dec 22, 2011
- Hiroshi Kawahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PIEZOELECTRIC VIBRATING DEVICES AND METHODS FOR MANUFACTURING SAME
- Publication number 20110062825
- Publication date Mar 17, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Hiroshi Kawahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
PIEZOELECTRIC VIBRATING DEVICES AND METHODS FOR MANUFACTURING SAME
- Publication number 20110062828
- Publication date Mar 17, 2011
- Nihon Dempa Kogyo Co., Ltd.
- Hiroshi Kawahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Rare Earth Magnet and Method for Manufacturing Same
- Publication number 20080050581
- Publication date Feb 28, 2008
- TDK Corporation
- Masashi Miwa
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Surface acoustic wave device and manufacruring method thereof
- Publication number 20060197197
- Publication date Sep 7, 2006
- NIHON DEMPA KOGYO CO., LTD.
- Tadaaki Tsuda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Optical disc and method for manufacturing the same
- Publication number 20040175529
- Publication date Sep 9, 2004
- TDK Corporation
- Narutoshi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc and method for manufacturing the same
- Publication number 20040175530
- Publication date Sep 9, 2004
- TDK Corporation
- Narutoshi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc and method for manufacturing the same
- Publication number 20040175531
- Publication date Sep 9, 2004
- TDK Corporation
- Narutoshi Fukuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
Transaction adjusting device
- Publication number 20020138293
- Publication date Sep 26, 2002
- Hiroshi Kawahara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Saw filter device and package for accommodating the same
- Publication number 20020053958
- Publication date May 9, 2002
- Yoshihiro Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Functional film
- Publication number 20020051879
- Publication date May 2, 2002
- TDK Corporation
- Kiminori Tamai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface acoustic wave device and manufacturing method thereof
- Publication number 20020047501
- Publication date Apr 25, 2002
- Tadaaki Tsuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Surface acoustic wave filter and surface acoustic wave filter appar...
- Publication number 20020043891
- Publication date Apr 18, 2002
- Yoshihiro Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY

Hiroshi Kawahara

Person

Patents Grantslast 30 patents

Piezoelectric device and method for manufacturing same

Methods for manufacturing piezoelectric vibrating pieces

Piezoelectric vibrating devices and methods for manufacturing same

Transaction adjusting device

Surface acoustic wave device

Optical disc and method for manufacturing the same

Optical disc and method for manufacturing the same

Optical disc and method for manufacturing the same

Surface acoustic wave filter and surface acoustic wave filter appar...

Saw filter device and package for accommodating the same

Functional film having specific surface dispersion ratio

Electronic part and method of assembling the same

Magnetic disk apparatus with protective films

Overcoat magnetic head slider having overcoat and magnetic disk device

Magnetic recording media and method for making them

Magnetic recording media having two magnetic layers; the first for...

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Patents Applicationslast 30 patents

PIEZOELECTRIC DEVICE AND METHOD FOR FABRICATING THE SAME

PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING SAME

PIEZOELECTRIC VIBRATING DEVICES AND METHODS FOR MANUFACTURING SAME

PIEZOELECTRIC VIBRATING DEVICES AND METHODS FOR MANUFACTURING SAME

Rare Earth Magnet and Method for Manufacturing Same

Surface acoustic wave device and manufacruring method thereof

Optical disc and method for manufacturing the same

Optical disc and method for manufacturing the same

Optical disc and method for manufacturing the same

Transaction adjusting device

Saw filter device and package for accommodating the same

Functional film

Surface acoustic wave device and manufacturing method thereof

Surface acoustic wave filter and surface acoustic wave filter appar...