Yoshihiko Hayashi

Person

Setagaya, JP

People

Patents Grantslast 30 patents

Information Patent Grant
System and method for using an output transformer for laser diode d...
- Patent number 7,411,987
- Issue date Aug 12, 2008
- Maxim Integrated Products, Inc.
- Kazuhiko Murata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
System and method for using an output transformer for packaged lase...
- Patent number 7,003,007
- Issue date Feb 21, 2006
- Maxim Integrated Products, Inc.
- Kazuhiko Murata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
System and method for using an output transformer for laser diode d...
- Patent number 6,931,040
- Issue date Aug 16, 2005
- Maxim Integrated Products, Inc.
- Kazuhiko Murata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
TESTING APPARATUS FOR CONDUCTING A TEST ON A MAGNETIC RECORDING MED...
- Patent number 6,894,489
- Issue date May 17, 2005
- Hitachi, Ltd.
- Masami Makuuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Driver circuit and optical-transmission module
- Patent number 6,829,441
- Issue date Dec 7, 2004
- OpNext Japan, Inc.
- Norio Chujo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Driver circuit integrated with load current output circuit, pin ele...
- Patent number 6,801,050
- Issue date Oct 5, 2004
- Hitachi, Ltd.
- Keizo Takechi
- G01 - MEASURING TESTING
Information Patent Grant
Testing apparatus of magnetic recording medium or magnetic head inc...
- Patent number 6,700,369
- Issue date Mar 2, 2004
- Hitachi, Ltd.
- Masami Makuuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for determining a magnetic field
- Patent number 6,625,554
- Issue date Sep 23, 2003
- Hitachi, Ltd.
- Takashi Suga
- G01 - MEASURING TESTING
Information Patent Grant
Reader and/or writer apparatus, power feeding system, and communica...
- Patent number 6,608,550
- Issue date Aug 19, 2003
- Hitachi, Ltd.
- Yoshihiko Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Driver circuit and optical-transmission module
- Patent number 6,606,177
- Issue date Aug 12, 2003
- Hitachi, Ltd.
- Norio Chujo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Load current output circuit for electronic device and IC tester usi...
- Patent number 6,448,800
- Issue date Sep 10, 2002
- Hitachi Electronics Engineering Co., Ltd.
- Keiichi Yamamoto
- G01 - MEASURING TESTING
Information Patent Grant
Power transmission system, IC card and information communication sy...
- Patent number 6,427,065
- Issue date Jul 30, 2002
- Hitachi, Ltd.
- Takashi Suga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Diode element circuit and switch circuit using the same
- Patent number 6,424,201
- Issue date Jul 23, 2002
- Hitachi Electronics Engineering Co., Ltd.
- Keiichi Yamamoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power transmission system IC card and information communication sys...
- Patent number 6,321,067
- Issue date Nov 20, 2001
- Hitachi, Ltd.
- Takashi Suga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semiconductor device tester and method for testing semiconductor de...
- Patent number 6,275,023
- Issue date Aug 14, 2001
- Hitachi Electronics Engineering Co., Ltd.
- Akio Oosaki
- G01 - MEASURING TESTING
Information Patent Grant
Reader and/or writer apparatus, power feeding system, and communica...
- Patent number 6,194,993
- Issue date Feb 27, 2001
- Hitachi, Ltd.
- Yoshihiko Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Reader/writer having coil arrangements to restrain electromagnetic...
- Patent number 6,176,433
- Issue date Jan 23, 2001
- Hitachi, Ltd.
- Kouichi Uesaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Power transmission system, power transmission/communication system...
- Patent number 6,164,532
- Issue date Dec 26, 2000
- Hitachi, Ltd.
- Takashi Suga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data communication system and radio IC card system
- Patent number 5,949,823
- Issue date Sep 7, 1999
- Hitachi, Ltd.
- Takashi Suga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifier with a function for switching on and off the output signal
- Patent number 5,541,553
- Issue date Jul 30, 1996
- Hitachi, Ltd.
- Norio Chujo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital circuitry apparatus
- Patent number 5,438,259
- Issue date Aug 1, 1995
- Hitachi, Ltd.
- Ritsuro Orihashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital circuitry apparatus
- Patent number 5,406,198
- Issue date Apr 11, 1995
- Hitachi, Ltd.
- Ritsuro Orihashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Distributed timing signal generator
- Patent number 5,153,883
- Issue date Oct 6, 1992
- Hitachi, Ltd.
- Yoshihiko Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Air bed conveying system
- Patent number 5,078,776
- Issue date Jan 7, 1992
- Nippon Sheet Glass Co., Ltd.
- Masuhide Kajii
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber element
- Patent number 4,973,129
- Issue date Nov 27, 1990
- Nippon Sheet Glass Co., Ltd.
- Takashi Fukuzawa
- G02 - OPTICS
Information Patent Grant
Time interval measurement apparatus
- Patent number 4,855,970
- Issue date Aug 8, 1989
- Hitachi, Ltd.
- Yoshihiko Hayashi
- G04 - HOROLOGY
Information Patent Grant
Memory test apparatus
- Patent number 4,788,684
- Issue date Nov 29, 1988
- Hitachi, Ltd.
- Ikuo Kawaguchi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
System and method for using an output transformer for laser diode d...
- Publication number 20050243878
- Publication date Nov 3, 2005
- Maxim Integrated Products, Inc.
- Kazuhiko Murata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
System and method for using an output transformer for laser diode d...
- Publication number 20040258114
- Publication date Dec 23, 2004
- Maxim Integrated Products, Inc.
- Kazuhiko Murata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
System and method for using an output transformer for packaged lase...
- Publication number 20040258115
- Publication date Dec 23, 2004
- Maxim Integrated Products, Inc.
- Kazuhiko Murata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Testing apparatus of magnetic recording medium or magnetic head
- Publication number 20040124832
- Publication date Jul 1, 2004
- Masami Makuuchi
- G01 - MEASURING TESTING
Information Patent Application
Driver circuit and optical-transmission module
- Publication number 20030198479
- Publication date Oct 23, 2003
- Norio Chujo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for determining a magnetic field
- Publication number 20030001596
- Publication date Jan 2, 2003
- Takashi Suga
- G01 - MEASURING TESTING
Information Patent Application
Driver circuit integrated with load current output circuit, pin ele...
- Publication number 20020171446
- Publication date Nov 21, 2002
- Hitachi Electronics Engineering Co., Ltd.
- Keizo Takechi
- G01 - MEASURING TESTING
Information Patent Application
Packaging substrate and semiconductor device
- Publication number 20020011662
- Publication date Jan 31, 2002
- Yasumoto Komiya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Diode element circuit and switch circuit using the same
- Publication number 20010048337
- Publication date Dec 6, 2001
- Keiichi Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Reader and/or writer apparatus, power feeding system, and communica...
- Publication number 20010000659
- Publication date May 3, 2001
- Yoshihiko Hayashi
- G06 - COMPUTING CALCULATING COUNTING

Yoshihiko Hayashi

Person

Patents Grantslast 30 patents

System and method for using an output transformer for laser diode d...

System and method for using an output transformer for packaged lase...

System and method for using an output transformer for laser diode d...

TESTING APPARATUS FOR CONDUCTING A TEST ON A MAGNETIC RECORDING MED...

Driver circuit and optical-transmission module

Driver circuit integrated with load current output circuit, pin ele...

Testing apparatus of magnetic recording medium or magnetic head inc...

Method and apparatus for determining a magnetic field

Reader and/or writer apparatus, power feeding system, and communica...

Driver circuit and optical-transmission module

Load current output circuit for electronic device and IC tester usi...

Power transmission system, IC card and information communication sy...

Diode element circuit and switch circuit using the same

Power transmission system IC card and information communication sys...

Semiconductor device tester and method for testing semiconductor de...

Reader and/or writer apparatus, power feeding system, and communica...

Reader/writer having coil arrangements to restrain electromagnetic...

Power transmission system, power transmission/communication system...

Data communication system and radio IC card system

Amplifier with a function for switching on and off the output signal

Digital circuitry apparatus

Digital circuitry apparatus

Distributed timing signal generator

Air bed conveying system

Optical fiber element

Time interval measurement apparatus

Memory test apparatus

Patents Applicationslast 30 patents

System and method for using an output transformer for laser diode d...

System and method for using an output transformer for laser diode d...

System and method for using an output transformer for packaged lase...

Testing apparatus of magnetic recording medium or magnetic head

Driver circuit and optical-transmission module

Method and apparatus for determining a magnetic field

Driver circuit integrated with load current output circuit, pin ele...

Packaging substrate and semiconductor device

Diode element circuit and switch circuit using the same

Reader and/or writer apparatus, power feeding system, and communica...