Inventor
Kazuo Furukawa
Inventor
Yokohama, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Dprimary
A01DHarvesting11%
F16FSprings11%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure11%
B60LPropulsion of electrically-propelled vehicles7%
F16HGearing7%
G06FElectric digital data processing7%
G09BEducational or demonstration appliances7%
G11CStatic stores7%
B60GVehicle suspension arrangements4%
F01MLubricating of machines or engines in general4%
PatentTitleYear
11,016,138Diagnosis system for power conversion device, diagnosis method for semiconductor module, and power conversion device20219,835,217Coil spring modeling apparatus and method utilizing a torsion detection to control an actuator unit20179,811,067'Coil spring modeling apparatus and method of the same'20179,470,590'Coil spring modeling apparatus'20168,627,642'Clippings collecting-discharging device'20145,058,545'Oil pan for internal combustion engine'19914,962,636'Mower'19904,941,863'Stepless speed change mechanism in belt transmission device'19904,934,989'Belt transmission'19904,829,754'Front mower'19894,233,669'Redundant bubble memory control system'19804,183,090'Magnetic bubble memory equipment'19804,145,736'Microprogram control device'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1980Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history
1979–1991Based in Yokohama, JP· patent location history
1980–2021Patents assigned to HITACHI LTD (2)· patent assignee history
1989–1990Patents assigned to KUBOTA LTD (4)· patent assignee history
1989–1990Based in Osaka, JP· patent location history
2014Based in Sakura, JP· patent location history
2016–2017Patents assigned to NHK SPRING CO LTD (3)· patent assignee history
2016–2017Patents assigned to NHK INT CORP (2)· patent assignee history
2016–2017Based in Machida, JP· patent location history
2021Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KUBOTA LTD | 4 | 1989–1990 |
| NHK SPRING CO LTD | 3 | 2016–2017 |
| HITACHI LTD | 2 | 1980–2021 |
| NHK INT CORP | 2 | 2016–2017 |
| NIPPON TELEGRAPH & TELEPHONE | 2 | 1979–1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 4 | 1979–1991 |
| Osaka, JP | 4 | 1989–1990 |
| Machida, JP | 3 | 2016–2017 |
| Tokyo, JP | 1 | 2021 |
| Sakura, JP | 1 | 2014 |