Inventor
Tatsuo Hirai
Inventor
Otsu, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B25Bprimary
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding33%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure19%
B23PMetal-working not otherwise provided for14%
B25FCombination or multi-purpose tools not otherwise provided for10%
B60BVehicle wheels10%
LOC1010%
G08CTransmission systems for measured values, control or similar signals5%
PatentTitleYear
9,776,453'Tightening device and tightening method'20179,645,026'Tightening device'20178,264,374'Wireless data transmitting and receiving system'20127,992,455'Tightening torque measuring unit'20117,886,635'Bolt or nut tightening device'20117,757,587'Bolt or nut tightening device'2010D0605539'Power increasing device with a display for wrench'2009D0551998'Torque measuring device'20077,275,450'Tightening torque measuring unit and torque indicating tightening device'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2012Patents assigned to MAEDA METAL IND (7)· patent assignee history
2007–2012Based in Otsu, JP· patent location history
2010Based in Osaka, JP· patent location history
2012Patents assigned to HIRAI TATSUO (1)· patent assignee history
2012Patents assigned to KANEYAMA YASUNOBU (1)· patent assignee history
2017Patents assigned to FUJI HEAVY IND LTD (2)· patent assignee history
2017Patents assigned to TONE CO LTD (2)· patent assignee history
2017Based in Shiga, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MAEDA METAL IND | 7 | 2007–2012 |
| FUJI HEAVY IND LTD | 2 | 2017 |
| TONE CO LTD | 2 | 2017 |
| HIRAI TATSUOself | 1 | 2012 |
| KANEYAMA YASUNOBU | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Otsu, JP | 6 | 2007–2012 |
| Shiga, JP | 2 | 2017 |
| Osaka, JP | 1 | 2010 |