P

Inventor

KOKUBO MASARU

JP51 patents
⚠️ This page may combine multiple inventors who share the name “KOKUBO MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

28 patents
US6377511B1Apr 23, 2002

Semiconductor integrated circuit device

HITACHI LTD28 citations96
US6300807B1Oct 9, 2001

Timing-control circuit device and clock distribution system

HITACHI LTD70 citations96
US5446767AAug 29, 1995

Frequency synthesizer

HITACHI LTD78 citations94
US5018134AMay 21, 1991

Method for cancelling echo in a transmitter and an apparatus therefor

HITACHI LTD53 citations94
US6489824B2Dec 3, 2002

Timing-control circuit device and clock distribution system

HITACHI LTD28 citations93
US5327459AJul 5, 1994

Semiconductor integrated circuit containing an automatic equalizer including a circuit for periodically updating a plurality of tap coefficients at varying frequencies

HITACHI LTD22 citations93
US7339489B2Mar 4, 2008

Sensor with wireless communication function

HITACHI LTD31 citations92
US6594197B2Jul 15, 2003

Semiconductor integrated circuit device

HITACHI LTD13 citations92
US6463008B2Oct 8, 2002

Semiconductor integrated circuit device

HITACHI LTD19 citations92
US6215364B1Apr 10, 2001

Variable frequency oscillator, and phase locked loop and clock synchronizer using thereof

HITACHI LTD28 citations92
US6163585ADec 19, 2000

Phase-locked loop circuit and radio communication apparatus using the same

HITACHI LTD30 citations92
US5574455ANov 12, 1996

Digital to analog converter and frequency synthesizer using the converter

HITACHI LTD39 citations92
US5331583AJul 19, 1994

Running-average/decimation filter for an oversampling A/D converter

HITACHI LTD25 citations92
US4796296AJan 3, 1989

PCM coder and decoder having function of two-wire/four-wire conversion

HITACHI LTD26 citations92
US4672361AJun 9, 1987

Linear interpolative analog-to-digital converter

HITACHI LTD32 citations92
US6515519B1Feb 4, 2003

Semiconductor integrated circuit device

HITACHI LTD36 citations91
US5305379AApr 19, 1994

Semiconductor integrated device

HITACHI LTD34 citations89
US4896318AJan 23, 1990

Method for cancelling echo in a transmitter and an apparatus therefor

HITACHI LTD21 citations80
US5966407AOct 12, 1999

Bus driving system and integrated circuit device using the same

HITACHI LTD12 citations74
US6535070B2Mar 18, 2003

Variable frequency oscillator, and phase locked loop and clock synchronizer using thereof

HITACHI LTD9 citations73
US4652858AMar 24, 1987

Interpolative D/A converter

HITACHI LTD15 citations73
US5311503AMay 10, 1994

Terminal apparatus for full-duplex data transmission having an echo canceller

HITACHI LTD17 citations72
US5097488AMar 17, 1992

Transmission apparatus and method

HITACHI LTD15 citations70
US7808397B2Oct 5, 2010

Sensor with wireless communication function

HITACHI LTD3 citations63
US6639933B2Oct 28, 2003

Phase-locked loop circuit and radio communication apparatus using the same

HITACHI LTD2 citations63
US6324219B2Nov 27, 2001

Phase-locked loop circuit and radio communication apparatus using the same

HITACHI LTD3 citations63
US12333409B2Jun 17, 2025

Information processing device and learning recognition system

HITACHI LTD0 citations52
US10690696B2Jun 23, 2020

Acceleration sensor

HITACHI LTD0 citations51

RENESAS TECH CORP

14 patents

HITACHI METALS LTD

2 patents

RENESAS ELECTRONICS CORP

1 patent

RENASAS TECHNOLOGY CORP

1 patent

TTP COMM LTD

1 patent

THE TECHNOLOGY PARTNERSHIP PLC

1 patent

HITACHI ASTEMO LTD

1 patent

OKUDA YUICHI

1 patent

Showing the top 50 of 51 patents by PatentIndex Score.