Inventor

Kenichi Nishikawa

Inventor

Bisai, JP

Overview

48→

Patents

1992–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 48 as inventor

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

H01Tprimary

H01TSpark gaps19%

H01FMagnets7%

C09JAdhesives6%

C22CAlloys6%

C03CChemical composition of glasses, glazes or vitreous enamels4%

G06FElectric digital data processing4%

B22FWorking metallic powder3%

H04WWireless communication networks3%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use3%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

10,946,617Graphite laminated body2021 10,533,022Silicon oligomer and production method therefor2020 10,479,058Pressure-sensitive adhesive sheet2019 10,392,533Adhesive sheet2019 10,020,102R-T-B based permanent magnet and rotating machine2018 10,008,773Wireless communication apparatus, antenna directionality control method, and power supply circuit2018 10,009,895Beamforming for selecting a transmitting direction based on feedback from a reception device2018 10,005,104Black coating film-forming vehicle component and/or fastening component, and manufacturing method thereof2018 9,896,606'Pressure-sensitive adhesive sheet and use thereof'2018 9,756,453'Wireless communication apparatus, wireless communication system, and channel estimating method'2017 9,631,264'Soft magnetic powder core'2017 9,605,184'Pressure-sensitive adhesive sheet'2017 9,605,189'Pressure-sensitive adhesive composition'2017 9,548,148'R-T-B based sintered magnet'2017 9,318,244'Soft magnetic powder core'2016 9,082,537'R-T-B based permanent magnet'2015 8,974,235'Electric connection box and relay module'2015 8,961,712'Rare earth based sintered magnet'2015 8,285,928'Storage control apparatus and storage control method for recovering data in a failed storage device of a RAID sysytem'2012 8,035,040'Electrical junction box provided with electric current sensor'2011 7,081,274'Method for producing spark plug'2006 6,831,395'Spark plug'2004 6,831,396'Spark plug with glaze and marking'2004 6,822,378'Glaze layer for a spark plug'2004 6,771,009'Spark plug'2004 6,765,340'Spark plug'2004 6,752,677'Method for producing spark plug'2004 6,744,188'Spark plug'2004 6,727,541'Semiconductor memory device having a trench capacitor'2004 6,725,221'Image data transfer method and system therefor'2004 6,590,318'Spark plug having a reduced lead glaze layer on the insulator thereof'2003 6,590,317'Spark plug'2003 6,566,792'Spark plug'2003 6,334,800'Manufacturing method of resistor-incorporated spark plug'2002 6,208,730'Key top attachment structure'2001 6,188,166'Spark plug having a metal layer in a terminal metal piece'2001 6,160,342'Resistor-incorporated spark plug and manufacturing method of resistor-incorporated spark plug'2000 6,118,411'Loop antenna and antenna holder therefor'2000 5,934,453'Key top holding structure'1999 5,898,248'Small motor holding device in individual calling receiver'1999 5,859,491'Spark plug'1999 5,761,404'Image-data managing apparatus'1998 5,728,852'Method for producing monohydroxyalkylamides'1998 5,565,157'Method of making a spark plug insulator'1996 5,508,582'Spark plug insulator for use in internal combustion engine'1996 5,258,592'Waterproof switch apparatus for electronic device'1993 5,181,260'Method for determining the amount of skew of image, method for correcting the same, and image data processing system'1993 5,129,011'Method and apparatus for retrieving image data'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2012Patents assigned to HITACHI LTD (5)· patent assignee history

1993–2001Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (5)· patent assignee history

1996–2006Patents assigned to NGK SPARK PLUG CO (16)· patent assignee history

1996–2004Based in Nagoya, JP· patent location history

1999–2020Based in Kanagawa, JP· patent location history

2003–2006Based in Bisai, JP· patent location history

2015–2018Patents assigned to TDK CORP (6)· patent assignee history

2015–2018Based in Tokyo, JP· patent location history

2017–2019Patents assigned to NITTO DENKO CORP (5)· patent assignee history

2017–2019Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NGK SPARK PLUG CO	16	1996–2006
TDK CORP	6	2015–2018
HITACHI LTD	5	1992–2012
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	5	1993–2001
NITTO DENKO CORP	5	2017–2019

Locations

Location	Patents	Span
Bisai, JP	9	2003–2006
Kanagawa, JP	7	1999–2020
Tokyo, JP	6	2015–2018
Ibaraki, JP	4	2017–2019
Nagoya, JP	4	1996–2004