Inventor
Yoshihito Sekine
Inventor
Ibaraki, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Fprimary
G01FMeasuring volume, volume flow, mass flow or liquid level50%
F02DControlling combustion engines36%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
5,381,691'Air flow meter'1995RE034403'Hot-wire type air flow meter and an internal combustion engine with the same'19935,201,216'Air flow meter for internal combustion engines and a manufacturing method thereof'19935,186,150'Method and system for measuring fluid flow rate by using fuzzy inference'19934,986,115'Hot-wire air flow meter'19914,974,445'Hot wire type of air flow meter and internal combustion engine using the same'19904,887,577'Hot-wire type air flow meter and an internal combustion engine with the same'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1995Patents assigned to HITACHI LTD (7)· patent assignee history
1989–1995Based in Ibaraki, JP· patent location history
1993Based in Niihari-gun, JP· patent location history
1993Based in Chiyoda-ku, JP· patent location history
1995Patents assigned to HITACHI AUTOMOTIVE ENG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 7 | 1989–1995 |
| HITACHI AUTOMOTIVE ENG | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 5 | 1989–1995 |
| Niihari-gun, JP | 1 | 1993 |
| Chiyoda-ku, JP | 1 | 1993 |