Inventor

Koichi Nagai

Inventor

Tokyo, JP

Overview

69→

Patents

1979–2021

Patent span

Physics

Primary field (CPC G)

Patents· 69 as inventor

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

G06Fprimary

G06FElectric digital data processing13%

G11BInformation storage based on relative movement between record carrier and transducer9%

G11CStatic stores6%

C07CAcyclic or carbocyclic compounds6%

H05KPrinted circuits5%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use5%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%

Y10TTechnical subjects covered by former us classification4%

B01DSeparation3%

B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids3%

PatentTitleYear

11,089,977Gait analyzing device, gait analyzing method, and computer-readable recording medium2021 10,875,114Vapor-phase type heating method and vapor-phase type heating apparatus2020 10,754,561Information processing apparatus and storage device2020 10,717,143Vapor-phase type heating method and vapor-phase type heating apparatus2020 10,566,274Semiconductor device and semiconductor package including plural solder ball sets each corresponding to a pair of differential input and differential output signals2020 10,509,735Data storage apparatus, data processing system, and data processing method2019 10,505,927Memory device and host device2019 10,478,828Solvent separation method and solvent separation apparatus2019 10,376,831Solvent separation method and solvent separation apparatus2019 10,258,995Solvent separation method, solvent separation apparatus and solvent separation system2019 10,157,149Memory device and host device2018 10,090,235Semiconductor device and semiconductor package2018 10,089,027Information processing system2018 10,040,025Solvent separator and heat treatment apparatus2018 9,971,522Memory system and method2018 9,934,825Semiconductor device and electronic device2018 9,911,502'Data storage device with nonvolatile memory'2018 9,811,277'Information processing system'2017 9,785,384'Semiconductor storage device and method for controlling nonvolatile semiconductor memory'2017 9,731,299'Method and apparatus for separating solvent'2017 9,704,593'Data storage device including nonvolatile memory in which on/off state of power source voltage is controlled'2017 9,619,170'Information processing system having a data migration log'2017 9,396,137'Storage device, protection method, and electronic apparatus'2016 9,354,818'Memory device and data storing method'2016 9,304,685'Storage array system and non-transitory recording medium storing control program'2016 9,275,947'Semiconductor device and semiconductor package having a plurality of differential signal balls'2016 9,201,784'Semiconductor storage device and method for controlling nonvolatile semiconductor memory'2015 9,081,943'Storage device, protection method, and electronic apparatus'2015 9,064,108'Storage device, storage system, and authentication method'2015 8,782,804'Storage device, storage system, and authentication method'2014 8,586,786'Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid'2013 8,252,714'Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid'2012 8,208,270'Substrate joining member and three-dimensional structure using the same'2012 8,159,829'Relay substrate, method for manufacturing the relay substrate and three-dimensional circuit device using the relay substrate'2012 7,907,420'Bare chip mounted structure and mounting method'2011 7,808,094'Stacked structure of semiconductor chips, memory card, and method of manufacturing stacked structure of semiconductor chips'2010 7,768,900'Information storage medium, information recording method, and information reproducing method'2010 7,612,007'Process for regenerating catalyst'2009 7,536,996'Fuel injection controller and fuel injection control system'2009 7,464,838'Viscous material application apparatus'2008 7,436,741'Optical disc unit, optical disc recording method, and optical disc'2008 7,369,475'Optical disc, information playback apparatus, information playback method, and information recording method'2008 7,225,452'Optical head'2007 7,204,233'Common rail fuel injection system'2007 7,013,865'Fuel injection system'2006 6,968,563'Optical head'2005 6,827,000'Fuel injection pump'2004 6,736,291'Viscous material application apparatus'2004 6,550,699'Solenoid valve and fuel injector using same'2003 6,402,011'Reflow method and reflow device'2002 6,145,734'Reflow method and reflow device'2000 5,982,564'Objective lens driving apparatus'1999 5,825,745'Data storage-playback apparatus and optical disk apparatus'1998 5,789,721'High-frequency induction heater and power source circuit for same'1998 5,745,470'Head moving apparatus which cancels leakage flux'1998 5,721,723'Objective lens driving device, data recording device, and data reproducing device, all having driver force selectively 120 tutine and positioning the objective lenses'1998 5,610,889'Information processing apparatus'1997 5,602,280'Process for production of unsaturated aldehyde and unsaturated carboxylic acid'1997 5,500,843'Information processing apparatus with movable spindle shafts'1996 5,030,776'Process for producing nitrobenzenes'1991 5,004,846'Process for producing nitrobenzenes'1991 4,879,055'Soft magnetic material composition and molding process therefor'1989 4,650,714'Ink jet recording sheet'1987 4,567,114'Thermal dye-transfer type recording sheet'1986 4,565,801'Heteropoly-acids and their production and use'1986 4,490,435'Thermal dye-transfer type recording sheet'1984 4,478,910'Ink jet recording paper'1984 4,306,088'Production of methacrolein'1981 4,139,675'Recording paper with resin-containing recording layer and heat sensitive adhesion layer'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–2021Based in Tokyo, JP· patent location history

1981–2013Patents assigned to SUMITOMO CHEMICAL CO (8)· patent assignee history

1996–2017Patents assigned to TOSHIBA KK (21)· patent assignee history

1998–2020Based in Kyoto, JP· patent location history

1998–2018Based in Chigasaki, JP· patent location history

1998–2017Based in Kanagawa, JP· patent location history

2008–2019Patents assigned to PANASONIC CORP (9)· patent assignee history

2012–2015Patents assigned to NAGAI KOICHI (7)· patent assignee history

2016–2020Based in Ota, JP· patent location history

2017–2020Patents assigned to TOSHIBA MEMORY CORP (12)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOSHIBA KK	21	1996–2017
TOSHIBA MEMORY CORP	12	2017–2020
PANASONIC CORP	9	2008–2019
SUMITOMO CHEMICAL CO	8	1981–2013
NAGAI KOICHIself	7	2012–2015

Locations

Location	Patents	Span
Tokyo, JP	14	1979–2021
Kyoto, JP	12	1998–2020
Chigasaki, JP	9	1998–2018
Kanagawa, JP	8	1998–2017
Ota, JP	5	2016–2020