Inventor

Kenji Naganuma

Inventor
Hitachinaka, JP

Overview

7→
Patents
2010–2020
Patent span
Human necessities
Primary field (CPC A)

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%

Career & 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
AssigneePatentsSpan
HITACHI KOKI KK52010–2020
ASAHI KASEI PHARMA CORP22011
NAGANUMA KENJIself22012–2013
KANAYA KENTARO12013
KOKI HOLDINGS CO LTD12020
Locations
LocationPatentsSpan
Hitachinaka, JP32010–2013
Ibaraki, JP22016–2020
Tokyo, JP22011