Inventor
Chikai Yoshimizu
Inventor
Ibaraki, JP
Overview
Patents· 36 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 holding18%
B25FCombination or multi-purpose tools not otherwise provided for18%
Y10TTechnical subjects covered by former us classification15%
H02KDynamo-electric machines8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
B25HWorkshop equipment, e.g. for marking-out work4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%
H02JElectric power networks4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
B23DPlaning3%
PatentTitleYear
10,547,182Electric operating machine202010,263,228Electric device including sealing member between attachment part and battery pack20199,616,558'Impact tool'20179,160,211'Work machine and brushless motor'20159,065,155'Adaptor, assembly of battery pack and adaptor, and electric tool with the same'20158,928,201'Electric motor having an output shaft rotatably supported by a housing and working machine including the same'20158,517,558'Power tool'20138,237,404'Adaptor, assembly of battery pack and adaptor, and electric tool with the same'20127,934,847'Power tool with light unit'20117,789,281'Electrically driven flywheel-fastener driver'20107,681,661'Electric power tool'20107,665,541'Electric power tool with cover'20107,541,773'Battery-powered tool capable of detecting discharged battery pack'20097,508,109'Commutator motor'20097,490,746'Power tool'20097,455,121'Power tool'20087,368,843'Commutator motor'20087,344,054'Power tool'20087,323,796'Motor-driven tool'20087,216,723'Pulse torque generator and power tool having the same'20077,185,998'Power tool'20077,140,451'Portable tool having cover and label to be stuck on the portable tool for identification'20067,108,079'Electric power tool'20067,064,467'Commutator motor'20067,048,075'Power tool'20066,938,531'Reciprocal-movement power tool'20056,905,052'Power tool'20056,679,406'Power tool'20046,661,148'Motor-driven tool'20036,495,932'DC power source unit'20026,172,860'DC power source unit alarming before electrically powered tool is overheated and stopping power supply thereafter'20016,026,668'Electrically-powered cutting and bending machine'20005,974,918'Screw driving device'19995,931,039'Electrical bar cutting and bending tool'19995,816,121'Cordless fastening tool'1998D0333767'Portable cordless hammer'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2020Patents assigned to HITACHI KOKI KK (36)· patent assignee history
1993Based in Katsuta, JP· patent location history
1998–2020Based in Ibaraki, JP· patent location history
1999–2019Based in Hitachinaka, JP· patent location history
2012–2017Patents assigned to TAKANO NOBUHIRO (6)· patent assignee history
2012–2017Patents assigned to YOSHIMIZU CHIKAI (6)· patent assignee history
2012–2015Patents assigned to FUNABASHI KAZUHIKO (4)· patent assignee history
2015–2017Patents assigned to TANIMOTO HIDEYUKI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI KOKI KK | 36 | 1993–2020 |
| TAKANO NOBUHIRO | 6 | 2012–2017 |
| YOSHIMIZU CHIKAIself | 6 | 2012–2017 |
| FUNABASHI KAZUHIKO | 4 | 2012–2015 |
| TANIMOTO HIDEYUKI | 3 | 2015–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 18 | 1998–2020 |
| Hitachinaka, JP | 17 | 1999–2019 |
| Katsuta, JP | 1 | 1993 |