Inventor

NAGANO KATSUMI

JP87 patents

⚠️ This page may combine multiple inventors who share the name “NAGANO KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOKYO SHIBAURA ELECTRIC CO

18 patents

US4591739AMay 27, 1986

Impedance conversion circuit

TOKYO SHIBAURA ELECTRIC CO29 citations93

US4574205AMar 4, 1986

Temperature detecting transistor circuit

TOKYO SHIBAURA ELECTRIC CO26 citations93

US4507573AMar 26, 1985

Current source circuit for producing a small value output current proportional to an input current

TOKYO SHIBAURA ELECTRIC CO31 citations93

US4412186AOct 25, 1983

Current mirror circuit

TOKYO SHIBAURA ELECTRIC CO29 citations93

US4408190AOct 4, 1983

Resistorless digital-to-analog converter using cascaded current mirror circuits

TOKYO SHIBAURA ELECTRIC CO56 citations93

US4338527AJul 6, 1982

Voltage-current conversion circuit

TOKYO SHIBAURA ELECTRIC CO38 citations93

US4633358ADec 30, 1986

H-switch circuit with an overcurrent protection circuit

TOKYO SHIBAURA ELECTRIC CO23 citations82

US4506208AMar 19, 1985

Reference voltage producing circuit

TOKYO SHIBAURA ELECTRIC CO26 citations82

US4475077AOct 2, 1984

Current control circuit

TOKYO SHIBAURA ELECTRIC CO24 citations82

US4418290ANov 29, 1983

Voltage comparator

TOKYO SHIBAURA ELECTRIC CO26 citations82

US4268789AMay 19, 1981

Limiter circuit

TOKYO SHIBAURA ELECTRIC CO19 citations82

US4191856AMar 4, 1980

Analog multiplexer

TOKYO SHIBAURA ELECTRIC CO28 citations81

US4754166AJun 28, 1988

Reset circuit for integrated injection logic

TOKYO SHIBAURA ELECTRIC CO12 citations74

US4752693AJun 21, 1988

Circuit with a photo coupler

TOKYO SHIBAURA ELECTRIC CO16 citations74

US4652764AMar 24, 1987

Current source circuit with a photo coupler

TOKYO SHIBAURA ELECTRIC CO12 citations74

US4570089AFeb 11, 1986

Pulse frequency multiplier

TOKYO SHIBAURA ELECTRIC CO8 citations74

US4565959AJan 21, 1986

Current supply circuit with redundant back-up current source

TOKYO SHIBAURA ELECTRIC CO8 citations74

US4536702AAug 20, 1985

Constant current source or voltage source transistor circuit

TOKYO SHIBAURA ELECTRIC CO15 citations74

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

16 patents

USD408032SApr 13, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD56 citations96

USD407719SApr 6, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD62 citations96

USD407722SApr 6, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations96

USD406135SFeb 23, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD63 citations96

USD409190SMay 4, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations93

USD402982SDec 22, 1998

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD43 citations93

USD392639SMar 24, 1998

Pager

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93

USD436939SJan 30, 2001

Mobile phone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92

USD427983SJul 11, 2000

Mobile phone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD40 citations92

USD423504SApr 25, 2000

Pager

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations92

USD408399SApr 20, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations92

USD407721SApr 6, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations92

USD407720SApr 6, 1999

Wireless telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92

USD341531SNov 23, 1993

Electric screwdriver

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92

USD375743SNov 19, 1996

Pager

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations91

USD436090SJan 9, 2001

Mobile phone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84

TOSHIBA KK

9 patents

US4819241AApr 4, 1989

Laser diode driving circuit

TOSHIBA KK54 citations96

US5067042ANov 19, 1991

Wiring board for flat package type integrated circuit device

TOSHIBA KK24 citations93

US4907214AMar 6, 1990

Eccentricity correction apparatus for an optical disk device

TOSHIBA KK35 citations93

US4806873AFeb 21, 1989

Laser diode driving circuit

TOSHIBA KK20 citations82

US5042021AAug 20, 1991

Eccentricity correction apparatus for an optical disc device

TOSHIBA KK11 citations74

US4819219AApr 4, 1989

Track jump control system for optical disk apparatus

TOSHIBA KK19 citations74

US4739174AApr 19, 1988

Converting circuit having first and second optically coupled phototransistors and first and second operational amplifiers

TOSHIBA KK17 citations74

US4636655AJan 13, 1987

Circuit in which output circuit and operational amplifier equipped input circuit are electrically isolated

TOSHIBA KK10 citations74

US4565962AJan 21, 1986

Gyrator

TOSHIBA KK9 citations74

NTN TOYO BEARING CO LTD

2 patents

US6903056B2Jun 7, 2005

Fluid bearing unit and lubricating oil composition for bearing

NTN TOYO BEARING CO LTD31 citations91

US7988361B1Aug 2, 2011

Hydrodynamic type oil-impregnated sintered bearing

NTN TOYO BEARING CO LTD9 citations83

SANKYO SEIKI SEISAKUSHO KK

2 patents

US5627147AMay 6, 1997

Lubricating fluid composition for dynamic pressure bearing

SANKYO SEIKI SEISAKUSHO KK18 citations91

US5631211AMay 20, 1997

Lubricating oil composition for use with sintered porous bearings

SANKYO SEIKI SEISAKUSHO KK41 citations89

MATSUSHITA ELECTRICAL IND CO LTD

1 patent

USD402805SDec 22, 1998

Pager case

MATSUSHITA ELECTRICAL IND CO LTD44 citations92

TAKASAGO INTERNATIONAL CORP US

1 patent

US5709895AJan 20, 1998

Process for producing flavor-containing capsule

TAKASAGO INTERNATIONAL CORP US37 citations89

FUJIWARA MASATO

1 patent

US8250490B2Aug 21, 2012

Display image control apparatus

FUJIWARA MASATO9 citations82

Showing the top 50 of 87 patents by PatentIndex Score.