Inventor
Yoshito Ohmura
Inventor
Owariasahi, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing33%
H05KPrinted circuits33%
H02HEmergency protective circuit arrangements11%
H03KPulse technique11%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%
PatentTitleYear
6,094,344'Heat dissipation structure for a personal computer including two heat dissipation block assemblies and two heat dissipation plates'20006,094,343'Heat dissipation structure for electronic equipment including two heat dissipation block assemblies and a heat conductive coupler'20005,805,417'Heat dissipation structure in a portable computer including a heat dissipation block extending from a heat dissipation plate through a first circuit board to a CPU on a second circuit board'19984,163,119'Protective circuit for electroacoustic transducer with hall element and voice coil temperature rise time constant circuit'19794,047,119'Transistor differential amplifier circuit'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2000Patents assigned to HITACHI LTD (5)· patent assignee history
1977Based in Hachio, JP· patent location history
1979Based in Aichi, JP· patent location history
1998–2000Based in Owariasahi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 5 | 1977–2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Owariasahi, JP | 3 | 1998–2000 |
| Aichi, JP | 1 | 1979 |
| Hachio, JP | 1 | 1977 |