Inventor

USAMI HIROSHI

JP8 patents

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

HITACHI LTD

2 patents

US6879845B2Apr 12, 2005

Wireless communication method and system using beam direction-variable antenna

HITACHI LTD47 citations92

US4777543AOct 11, 1988

Tracking correction for a rotary head by detection of the minimum signal level

HITACHI LTD11 citations73

TEAC CORP

2 patents

US4933925AJun 12, 1990

Optical tracking control apparatus for controlling a tracking of a light beam which scans an information recording disc using pre-formatted guide tracks having an interrupted signal format

TEAC CORP5 citations62

US6157508ADec 5, 2000

Magnetic recording/playback apparatus

TEAC CORP2 citations60

HITACHI AUTOMOTIVE SYSTEMS LTD

2 patents

US11935338B2Mar 19, 2024

Automotive electronic control unit

HITACHI AUTOMOTIVE SYSTEMS LTD0 citations51

US10981524B2Apr 20, 2021

Electronic control unit

HITACHI AUTOMOTIVE SYSTEMS LTD0 citations49

SHARP KK

1 patent

US6442146B1Aug 27, 2002

Time-division multiple-access communication system

SHARP KK25 citations90

TOSHIBA KK

1 patent

US5372545ADec 13, 1994

Ventilator with a sensor

TOSHIBA KK43 citations88