Inventor
Kenji Naganuma
Inventor
Hitachinaka, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Pprimary
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations15%
B27BSaws for wood or similar material15%
C07DHeterocyclic compounds15%
A01GHorticulture8%
A61KPreparations for medical, dental or toiletry purposes8%
B23DPlaning8%
B25CHand-held nailing or stapling tools8%
F02BInternal-combustion piston engines8%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%
LOC088%
PatentTitleYear
10,625,354Automated dressing unit for a chain saw20209,494,120'Chainsaw having ventholes for ventilation'20168,550,043'Two-stroke engine and motorized implement equipped with the two-stroke engine'20138,186,553'Fastener driving tool'20127,994,202'Bicyclic nitrogen-containing heterocyclic compounds'20117,960,392'Nitrogen-containing heterocyclic compounds'2011D0615836'Portable chain saw'2010Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010–2020Patents assigned to HITACHI KOKI KK (5)· patent assignee history
2010–2013Based in Hitachinaka, JP· patent location history
2011Patents assigned to ASAHI KASEI PHARMA CORP (2)· patent assignee history
2011Based in Tokyo, JP· patent location history
2012–2013Patents assigned to NAGANUMA KENJI (2)· patent assignee history
2013Patents assigned to KANAYA KENTARO (1)· patent assignee history
2016–2020Based in Ibaraki, JP· patent location history
2020Patents assigned to KOKI HOLDINGS CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI KOKI KK | 5 | 2010–2020 |
| ASAHI KASEI PHARMA CORP | 2 | 2011 |
| NAGANUMA KENJIself | 2 | 2012–2013 |
| KANAYA KENTARO | 1 | 2013 |
| KOKI HOLDINGS CO LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachinaka, JP | 3 | 2010–2013 |
| Ibaraki, JP | 2 | 2016–2020 |
| Tokyo, JP | 2 | 2011 |