Inventor
Yoshihiko Hayashi
Inventor
Tokyo, JP
Overview
Patents· 41 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables11%
G06KGraphical data reading6%
H03KPulse technique6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
G06FElectric digital data processing5%
F03DWind motors4%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g4%
G02BOptical elements, systems or apparatus4%
H04LTransmission of digital information, e.g. telegraphic communication4%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%
PatentTitleYear
10,855,497Semiconductor device including a high-speed receiver being capable of adjusting timing skew for multi-level signal and testing equipment including the receiver202010,815,974Method of repairing or reinforcing wind turbine blade, or attaching accessory part to wind turbine blade202010,247,360Method for filling hydrogen storage alloy20199,880,270'Test device and imaging device including the same'20188,700,362'Wind turbine rotor designing method, wind turbine rotor design support device, wind turbine rotor design support program and wind turbine rotor'20148,517,681'Wind turbine blade and wind turbine generator having the same'20138,082,768'Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug'20118,011,223'Remaining hydrogen sensor'20117,953,520'Cooling fan controller for controlling revolving fan based on fluid temperature and air temperature'20117,745,951'Wind turbine generator'20107,489,330'Scanning type image pick-up apparatus and a scanning type laser beam receive apparatus'20097,411,987'System and method for using an output transformer for laser diode drivers'20087,289,153'Scanning type image pick-up apparatus and a scanning type laser beam receive apparatus'20077,003,007'System and method for using an output transformer for packaged laser diode drivers'20066,931,040'System and method for using an output transformer for laser diode drivers'20056,894,489'TESTING APPARATUS FOR CONDUCTING A TEST ON A MAGNETIC RECORDING MEDIUM OR A MAGNETIC HEAD, THROUGH RECORDING TEST DATA ON THE MAGNETIC RECORDING MEDIUM AND REPRODUCING RECORDED TEST DATA THEREFROM BY MEANS OF THE MAGNETIC HEAD'20056,829,441'Driver circuit and optical-transmission module'20046,801,050'Driver circuit integrated with load current output circuit, pin electronics and IC tester having thereof'20046,700,369'Testing apparatus of magnetic recording medium or magnetic head including a plurality of analog-to-digital converters which convert reproduced testing data into digital data'20046,625,554'Method and apparatus for determining a magnetic field'20036,608,550'Reader and/or writer apparatus, power feeding system, and communication system'20036,606,177'Driver circuit and optical-transmission module'20036,448,800'Load current output circuit for electronic device and IC tester using the same load current output circuit'20026,449,012'Scanning type image pick-up apparatus and a scanning type laser beam receive apparatus'20026,427,065'Power transmission system, IC card and information communication system using IC card'20026,424,201'Diode element circuit and switch circuit using the same'20026,321,067'Power transmission system IC card and information communication system using IC card'20016,275,023'Semiconductor device tester and method for testing semiconductor device'20016,194,993'Reader and/or writer apparatus, power feeding system, and communication system'20016,176,433'Reader/writer having coil arrangements to restrain electromagnetic field intensity at a distance'20016,164,532'Power transmission system, power transmission/communication system and reader and/or writer'20005,949,823'Data communication system and radio IC card system'19995,541,553'Amplifier with a function for switching on and off the output signal'19965,438,259'Digital circuitry apparatus'19955,406,198'Digital circuitry apparatus'19955,153,883'Distributed timing signal generator'19925,078,776'Air bed conveying system'19924,973,129'Optical fiber element'19904,855,970'Time interval measurement apparatus'19894,788,684'Memory test apparatus'19884,651,334'Variable-ratio frequency divider'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2004Patents assigned to HITACHI LTD (18)· patent assignee history
1987–2009Based in Yokohama, JP· patent location history
1990–2020Based in Tokyo, JP· patent location history
1992–1995Based in Yokosuka, JP· patent location history
2000–2005Based in Setagaya, JP· patent location history
2001–2004Patents assigned to HITACHI ELECTR ENG (4)· patent assignee history
2005–2008Patents assigned to MAXIM INTEGRATED PRODUCTS (3)· patent assignee history
2010–2020Patents assigned to MITSUBISHI HEAVY IND LTD (4)· patent assignee history
2011–2014Patents assigned to HAYASHI YOSHIHIKO (3)· patent assignee history
2018–2020Based in Seongnam-si, KR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 18 | 1987–2004 |
| HITACHI ELECTR ENG | 4 | 2001–2004 |
| MITSUBISHI HEAVY IND LTD | 4 | 2010–2020 |
| HAYASHI YOSHIHIKOself | 3 | 2011–2014 |
| MAXIM INTEGRATED PRODUCTS | 3 | 2005–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 20 | 1990–2020 |
| Yokohama, JP | 6 | 1987–2009 |
| Setagaya, JP | 5 | 2000–2005 |
| Yokosuka, JP | 3 | 1992–1995 |
| Seongnam-si, KR | 2 | 2018–2020 |