Inventor
Ken Shiozawa
Inventor
Toyota, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Lprimary
F01LCyclically operating valves for machines or engines24%
F02DControlling combustion engines18%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof12%
F02NStarting of combustion engines12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general6%
F02PIgnition, other than compression ignition, for internal-combustion engines6%
Y02TClimate change mitigation technologies related to transportation6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
9,885,259'Lock determination device for variable valve timing mechanism and lock determination method for variable valve timing mechanism'20189,267,398'Variable valve timing control device of internal combustion engine'20169,157,379'Variable valve timing control device for internal combustion engine'20159,051,855'Engine valve timing control apparatus'20154,371,000'Anti surge float chamber assembly'19834,201,734'Carburetor'19804,147,032'Secondary air supply control system'19794,031,869'Ignition-timing adjusting system for spark-ignition internal combustion engines'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1983Patents assigned to TOYOTA MOTOR CO LTD (4)· patent assignee history
1977–1983Based in Toyota, JP· patent location history
1980Patents assigned to AISAN IND (1)· patent assignee history
2015–2018Patents assigned to NISSAN MOTOR (4)· patent assignee history
2015Patents assigned to ABE HIROSHI (1)· patent assignee history
2015Patents assigned to ARAI MASAHIRO (1)· patent assignee history
2015–2016Based in Yamato, JP· patent location history
2018Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NISSAN MOTOR | 4 | 2015–2018 |
| TOYOTA MOTOR CO LTD | 4 | 1977–1983 |
| ABE HIROSHI | 1 | 2015 |
| AISAN IND | 1 | 1980 |
| ARAI MASAHIRO | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Toyota, JP | 4 | 1977–1983 |
| Yamato, JP | 3 | 2015–2016 |
| Kanagawa, JP | 1 | 2018 |