Inventor
Hiromichi Ofuji
Inventor
Yokohama, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Bprimary
F02BInternal-combustion piston engines22%
F01LCyclically operating valves for machines or engines17%
F02DControlling combustion engines17%
Y02TClimate change mitigation technologies related to transportation17%
F01PCooling of machines or engines in general6%
F02FCylinders, pistons or casings, for combustion engines6%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof6%
F02PIgnition, other than compression ignition, for internal-combustion engines6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
4,934,347'Variable compression piston arrangement for internal combustion engine'19904,809,650'Variable compression control arrangement for internal combustion engine'19894,759,321'Valve timing arrangement for internal combustion engine having multiple inlet valves per cylinder'19884,708,101'Driving apparatus for intake and exhaust valves of internal combustion engine'19874,509,481'Internal combustion engine with cooling system'19854,438,736'Variable valve timing arrangement with automatic valve clearance adjustment'19844,297,302'Butterfly throttle valve with a raised upper lip'19814,236,493'EGR Control system'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1990Patents assigned to NISSAN MOTOR (8)· patent assignee history
1980–1990Based in Yokohama, JP· patent location history
1984–1985Based in Yokosuka, JP· patent location history
1989–1990Patents assigned to ATSUGI MOTOR PARTS CO LTD (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NISSAN MOTOR | 8 | 1980–1990 |
| ATSUGI MOTOR PARTS CO LTD | 2 | 1989–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 6 | 1980–1990 |
| Yokosuka, JP | 2 | 1984–1985 |