Inventor · disambiguated record
Hiroshi Usami
Also filed as: USAMI HIROSHI
8 granted patents·133 citations·filing 1986–2019
86Inventor score
Top patents by PatentIndex Score
8 records- 0186US6879845B2Wireless communication method and system using beam direction-variable antennaHITACHI LTD·Filed 2001·Granted Apr 12, 2005·47 cites·13 claims
- 0269US5372545AVentilator with a sensorTOSHIBA KK·Filed 1993·Granted Dec 13, 1994·43 cites·16 claims
- 0360US4777543ATracking correction for a rotary head by detection of the minimum signal levelHITACHI LTD·Filed 1986·Granted Oct 11, 1988·11 cites·2 claims
- 0455US6442146B1Time-division multiple-access communication systemSHARP KK·Filed 1998·Granted Aug 27, 2002·25 cites·20 claims
- 0549US11935338B2Automotive electronic control unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Granted Mar 19, 2024·0 cites·5 claims
- 0641US4933925AOptical 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 formatTEAC CORP·Filed 1986·Granted Jun 12, 1990·5 cites·7 claims
- 0740US10981524B2Electronic control unitHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Granted Apr 20, 2021·0 cites·10 claims
- 0833US6157508AMagnetic recording/playback apparatusTEAC CORP·Filed 1999·Granted Dec 5, 2000·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →