P

Inventor

HIRAYAMA HIROSHI

JP106 patents
⚠️ This page may combine multiple inventors who share the name “HIRAYAMA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

21 patents
US6763429B1Jul 13, 2004

Method and apparatus for recording and playing back information

HITACHI LTD111 citations98
US5966721AOct 12, 1999

Digital signal recording method and disk reproducing apparatus

HITACHI LTD37 citations96
US5467648ANov 21, 1995

Air flow rate measuring device

HITACHI LTD45 citations96
US5939628AAug 17, 1999

Thermal type air flow measuring instrument for internal combustion engine

HITACHI LTD18 citations93
US5789673AAug 4, 1998

Thermal type air flow measuring instrument for internal combustion engine

HITACHI LTD34 citations93
US6838798B2Jan 4, 2005

Permanent magnet type rotating electric machine

HITACHI LTD16 citations92
US6552461B2Apr 22, 2003

Permanent magnet type rotating electric machine

HITACHI LTD18 citations92
US6181660B1Jan 30, 2001

Digital signal processor circuit for reproduction of digital data

HITACHI LTD21 citations92
US5631415AMay 20, 1997

Air flow rate measuring device

HITACHI LTD31 citations92
US6681742B1Jan 27, 2004

Air flow measuring device formed integrally with electronically controlled throttle body

HITACHI LTD32 citations89
US7383815B2Jun 10, 2008

Air flow measuring device formed integrally with electronically controlled throttle body

HITACHI LTD11 citations83
US6154806ANov 28, 2000

Method for recording digital signals on multiple-layered disks

HITACHI LTD11 citations82
US6076135AJun 13, 2000

Information medium having a plurality of recording surfaces

HITACHI LTD12 citations82
US7769921B2Aug 3, 2010

Storage apparatus and data transfer method

HITACHI LTD7 citations74
US6347353B1Feb 12, 2002

Information medium having digital signals recorded thereon

HITACHI LTD7 citations74
US6233649B1May 15, 2001

Digital signal reproducing method

HITACHI LTD7 citations74
US6189379B1Feb 20, 2001

Thermal type air flow measuring instrument for internal combustion engine

HITACHI LTD12 citations74
US9817768B2Nov 14, 2017

Storage system and data storing method

HITACHI LTD2 citations73
US9645926B2May 9, 2017

Storage system and method for managing file cache and block cache based on access type

HITACHI LTD3 citations73
US8352663B2Jan 8, 2013

Data storage apparatus and method of data transfer

HITACHI LTD5 citations73
US6327905B1Dec 11, 2001

Air flow measurement apparatus

HITACHI LTD11 citations73

TOYOTA MOTOR CO LTD

8 patents

SEIKO EPSON CORP

4 patents

NEC CORP

3 patents

NAT SEMICONDUCTOR CORP

3 patents

HIRAYAMA HIROSHI

2 patents

TOYO ENGINEERING CORP

2 patents

HITACHI CAR ENG CO LTD

1 patent

NIPPON SOKEN

1 patent

FUJI VALVE CO

1 patent

MITSUI TOATSU CHEMICALS

1 patent

TAKADA MASANORI

1 patent

KAWAKAMI NORIHIKO

1 patent

MORI HAJIME

1 patent

Showing the top 50 of 106 patents by PatentIndex Score.