Inventor
Takuya Konnai
Inventor
Ibaraki, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B25Fprimary
B25FCombination or multi-purpose tools not otherwise provided for21%
B23DPlaning14%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling10%
G05BControl or regulating systems in general10%
G08BSignalling systems, e.g. personal calling systems10%
B24BMachines, devices, or processes for grinding or polishing7%
H02JElectric power networks7%
A47LDomestic washing or cleaning3%
B27BSaws for wood or similar material3%
F04DNon-positive-displacement pumps3%
PatentTitleYear
10,991,228Abnormality reporting system for electric tools202110,391,599Electric power tool201910,325,475Abnormality reporting system and electric tool, and communication terminal20199,940,813Abnormality reporting system and electric tool, and communication terminal20189,636,762'Desk-top cutting machine'20179,197,153'Power tool having display that displays residual capacity of battery'20158,800,108'Dust collector'20148,721,298'Air blower'20148,678,884'Portable abrasive tool'20148,354,183'Adapter for a power tool battery pack'20137,861,417'Portable electric cutting apparatus'20117,275,326'Portable electric cutting apparatus'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2019Patents assigned to HITACHI KOKI KK (11)· patent assignee history
2007–2021Based in Ibaraki, JP· patent location history
2013–2014Patents assigned to KONNAI TAKUYA (4)· patent assignee history
2013–2015Based in Hitachinaka, JP· patent location history
2014Patents assigned to SAGAWA KOUJI (3)· patent assignee history
2014Patents assigned to TANIMOTO HIDEYUKI (3)· patent assignee history
2019–2021Patents assigned to KOKI HOLDINGS CO LTD (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI KOKI KK | 11 | 2007–2019 |
| KONNAI TAKUYAself | 4 | 2013–2014 |
| KOKI HOLDINGS CO LTD | 3 | 2019–2021 |
| SAGAWA KOUJI | 3 | 2014 |
| TANIMOTO HIDEYUKI | 3 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 7 | 2007–2021 |
| Hitachinaka, JP | 5 | 2013–2015 |