Inventor

Yasuo Wada

Inventor

Tokyo, JP

Overview

1977–2019

Patent span

Electricity

Primary field (CPC H)

Patents· 75 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%

H10DInorganic electric semiconductor devices7%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h107%

B66DCapstans7%

Y10TTechnical subjects covered by former us classification6%

B82YSpecific uses or applications of nanostructures6%

B60CVehicle tyres4%

G11BInformation storage based on relative movement between record carrier and transducer4%

H10NElectric solid-state devices not otherwise provided for3%

H04QSelecting3%

PatentTitleYear

10,376,096Method of baking both sides of ingredients and an electric cooker used therefor2019 9,782,038'Electric cooker'2017 9,604,385'Electric trimmer'2017 8,471,237'Circuit board including a graphene film having contact region covering a recessed region and a patterned metal film covering the contact region and in direct electrical contact therewith, and device including same'2013 8,410,474'Graphene grown substrate and electronic/photonic integrated circuits using same'2013 D0626910'Tire'2010 7,712,498'Run flat tire'2010 D0612321'Tire'2010 D0558125'Tire tread'2007 7,168,470'Pneumatic radial tire'2007 7,090,032'Electric power tool'2006 7,053,325'Electric power tool'2006 6,807,996'Pneumatic tire'2004 6,715,522'Front and rear tire combination for vehicle having ABS and vehicle'2004 RE038472'Multiplexing system for ISDN circuits'2004 6,651,990'Tool holder'2003 6,581,662'Pneumatic tire with specified band cord'2003 6,557,605'Pneumatic tire with axially spaced high modulus edge bands and low modulus middle band'2003 6,529,539'Molecular light emission device'2003 6,525,336'Superfine electronic device and method for making same'2003 6,475,650'Ferromagnetic material and magnetic apparatus employing the ferromagnetic material'2002 6,406,001'Chain lever hoist'2002 6,366,340'Electron exposure apparatus'2002 6,299,990'Ferromagnetic material and magnetic apparatus employing the ferromagnetic material'2001 6,187,458'Ferromagnetic fine line and magnetic apparatus thereof'2001 6,153,500'Atomic wire and atomic wire switch'2000 6,114,762'Atomic wire and atomic wire switch'2000 5,987,039'Multiplexing system for ISDN circuits'1999 5,968,677'Ferromagnetic material and magnetic apparatus employing the ferromagnetic material'1999 5,801,472'Micro-fabricated device with integrated electrostatic actuator'1998 5,754,642'Telephone terminal having multiple handsets'1998 5,742,563'Electronic device with calendar function including determining the first week of the year'1998 5,694,059'Buffer of fine connection structure for connecting an atom level circuit and a general semiconductor circuit'1997 5,679,952'Scanning probe microscope'1997 5,651,061'Telephone exchange system'1997 5,586,751'Manual chain block'1996 5,586,752'Load chain retainment for a chain block'1996 5,575,457'Structure for controlling braking action of a mechanical brake of a lever type hoist and traction machine'1996 5,570,872'Free-rotation control apparatus of hoist and traction machine'1996 5,566,925'Manual chain block'1996 5,561,300'Atomic switching devices and logical circuits'1996 5,556,078'Manual hoist and traction machine'1996 5,544,863'Manual chain block'1996 5,530,684'Electronic device with calendar function'1996 5,523,058'Ultrasonic irradiation apparatus and processing apparatus based thereon'1996 5,510,614'Solid surface observation method and apparatus therefor, and electronic apparatus formed of the solid surface observation apparatus and method of forming the electronic apparatus'1996 5,485,406'Apparatus and method for determining the profile of the tread of a tire'1996 5,472,171'Free rotation control apparatus for a hoist and traction machine'1995 5,404,398'Telephone exchange system'1995 5,398,912'Hoist including brake cover and operating lever coupling'1995 5,351,937'Hoist and traction machine with free rotation control'1994 5,305,989'Hoist and traction machine with free rotation control'1994 5,277,527'Torque adjustment device'1994 5,266,815'Semiconductor integrated circuit device having superconductive layer and isolation member with nitride isolation'1993 5,261,403'Magnetic resonance imaging apparatus'1993 D0341016'Over-load cutout device for hand-operated, hoisting and pulling machine'1993 5,245,285'Probe for magnetic resonance inspection apparatus'1993 5,132,752'Field effect transistor'1992 5,129,439'Tire and rim assembly and tire for use therein'1992 5,092,166'Apparatus for determining shape of contact patch and contact pressure of tires'1992 5,070,921'Tire and rim assembly comprising a non-contacting bead toe'1991 5,035,597'Apparatus for manufacturing multi-element sintered material'1991 4,936,252'Equipment for manufacturing semiconductor devices'1990 4,860,071'Semiconductor memory using trench capacitor'1989 4,808,546'SOI process for forming a thin film transistor using solid phase epitaxy'1989 4,742,025'Method of fabricating a semiconductor device including selective etching of a silicide layer'1988 4,729,964'Method of forming twin doped regions of the same depth by high energy implant'1988 4,716,127'Method of implanting spatially controlled P-N junctions by focused ion beams containing at least two species'1987 4,693,779'Manufacturing apparatus for semiconductor devices'1987 4,655,875'Ion implantation process'1987 4,609,407'Method of making three dimensional semiconductor devices in selectively laser regrown polysilicon or amorphous silicon layers'1986 4,394,191'Stacked polycrystalline silicon film of high and low conductivity layers'1983 4,377,421'Method of making a stacked emitter in a bipolar transistor by selective laser irradiation'1983 4,351,674'Method of producing a semiconductor device'1982 4,016,007'Method for fabricating a silicon device utilizing ion-implantation and selective oxidation'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2013Patents assigned to HITACHI LTD (33)· patent assignee history

1977–2017Based in Tokyo, JP· patent location history

1987–2003Based in Bunkyo-ku, JP· patent location history

1991–2010Patents assigned to SUMITOMO RUBBER IND (10)· patent assignee history

1994–2002Patents assigned to ELEPHANT CHAIN BLOCK CO (12)· patent assignee history

1994–2017Patents assigned to RYOBI LTD (5)· patent assignee history

1994–1996Based in Sayama, JP· patent location history

1994–2017Based in Fuchu, JP· patent location history

1995–1999Patents assigned to HITACHI TELECOMM TECH (4)· patent assignee history

2003–2010Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	33	1977–2013
ELEPHANT CHAIN BLOCK CO	12	1994–2002
SUMITOMO RUBBER IND	10	1991–2010
RYOBI LTD	5	1994–2017
HITACHI TELECOMM TECH	4	1995–1999

Locations

Location	Patents	Span
Tokyo, JP	22	1977–2017
Bunkyo-ku, JP	9	1987–2003
Sayama, JP	8	1994–1996
Fuchu, JP	5	1994–2017
Kobe, JP	5	2003–2010