P

Inventor

SUGIYAMA KOICHI

JP89 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOSHIBA KK

17 patents
US7319579B2Jan 15, 2008

Snubber circuit

TOSHIBA KK73 citations98
US6566691B1May 20, 2003

Semiconductor device with trench gate having structure to promote conductivity modulation

TOSHIBA KK86 citations98
US7800168B2Sep 21, 2010

Power semiconductor device

TOSHIBA KK17 citations93
US7456487B2Nov 25, 2008

Semiconductor device

TOSHIBA KK28 citations93
US6891224B2May 10, 2005

Semiconductor device

TOSHIBA KK22 citations93
US6747295B2Jun 8, 2004

Semiconductor device with trench gate

TOSHIBA KK19 citations93
US6281569B1Aug 28, 2001

Pressure-contact semiconductor device

TOSHIBA KK29 citations93
US6040598AMar 21, 2000

High-breakdown-voltage semiconductor apparatus

TOSHIBA KK18 citations92
US6323717B1Nov 27, 2001

Semiconductor device, drive method, and drive apparatus

TOSHIBA KK46 citations91
US7639061B2Dec 29, 2009

Semiconductor device and capacitance regulation circuit

TOSHIBA KK8 citations84
US7772641B2Aug 10, 2010

Power semiconductor device with a plurality of gate electrodes

TOSHIBA KK15 citations82
US7268390B2Sep 11, 2007

Power semiconductor device

TOSHIBA KK9 citations74
US7141832B2Nov 28, 2006

Semiconductor device and capacitance regulation circuit

TOSHIBA KK7 citations74
US7075168B2Jul 11, 2006

Semiconductor device

TOSHIBA KK6 citations74
US7102207B2Sep 5, 2006

Semiconductor device having rectifying action

TOSHIBA KK8 citations70
US7781869B2Aug 24, 2010

Semiconductor device having rectifying action

TOSHIBA KK4 citations63
US7459751B2Dec 2, 2008

Insulated gate semiconductor device with small feedback capacitance and manufacturing method thereof

TOSHIBA KK3 citations63

SONY CORP

14 patents
US6437933B1Aug 20, 2002

Recording medium for protecting copyrighted data

SONY CORP58 citations97
US5923486AJul 13, 1999

Recording and reproducing system for protecting copyrighted data

SONY CORP61 citations97
US5815631ASep 29, 1998

Apparatus and method for controlling an audio video systems

SONY CORP60 citations96
US5790743AAug 4, 1998

Apparatus and method for editing isochronous information transmitted among various devices

SONY CORP19 citations93
US7265927B2Sep 4, 2007

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP11 citations92
US5548725AAug 20, 1996

System for transmitting command and/or data in a single packet and automatically reporting status a predetermined time after receiving a command

SONY CORP23 citations92
US6744588B2Jun 1, 2004

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP11 citations82
US6687076B2Feb 3, 2004

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP9 citations82
US7359137B2Apr 15, 2008

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP2 citations74
US7277248B2Oct 2, 2007

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP2 citations74
US6894860B2May 17, 2005

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP4 citations74
US6490113B2Dec 3, 2002

Recording medium and apparatus for protecting copyrighted digital data

SONY CORP8 citations74
US5903702AMay 11, 1999

Apparatus and method for editing isochronous information transmitted among various devices

SONY CORP14 citations74
US5796352AAug 18, 1998

Audio video equipment system with bus line and method of establishing a connection setting for the audio video equipment system

SONY CORP16 citations74

FUJITSU LTD

4 patents

DENSO CORP

3 patents

TOYOTA MOTOR CO LTD

2 patents

FUJITSU TEN LTD

2 patents

FUJI PHOTO FILM CO LTD

1 patent

AISIN SEIKI

1 patent

ALPS ELECTRIC CO LTD

1 patent

OGURA TSUNEO

1 patent

TRW INC

1 patent

YAZAKI CORP

1 patent

SHARP KK

1 patent

TOSHIBA TEC KK

1 patent

Showing the top 50 of 89 patents by PatentIndex Score.