Inventor

Yoshihisa Yamaguchi

Inventor
Tokyo, JP

Overview

19→
Patents
1987–2020
Patent span
Physics
Primary field (CPC G)

Patents· 19 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
A47CChairs6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
F16JPistons6%
G01CMeasuring distances, levels or bearings6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
G07CTime or attendance registers6%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons3%
B62BHand-propelled vehicles, e.g. hand carts or perambulators3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1989Patents assigned to YAMAGUCHI CINEMA KK (2)· patent assignee history
1987–2017Based in Tokyo, JP· patent location history
1993–1996Patents assigned to NIPPON PETROCHEMICALS CO LTD (7)· patent assignee history
1993–2016Patents assigned to YAMAGUCHI YOSHIHISA (4)· patent assignee history
1993–1996Based in Kawasaki, JP· patent location history
1993–1994Based in Edogawa-ku, JP· patent location history
2012–2016Patents assigned to MITSUBISHI ELECTRIC CORP (2)· patent assignee history
2016Based in Chiyoda-ku, JP· patent location history
2019–2020Patents assigned to NOK CORP (2)· patent assignee history
2019–2020Based in Fukushima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON PETROCHEMICALS CO LTD71993–1996
YAMAGUCHI YOSHIHISAself41993–2016
MITSUBISHI ELECTRIC CORP22012–2016
NOK CORP22019–2020
YAMAGUCHI CINEMA KK21987–1989
Locations
LocationPatentsSpan
Tokyo, JP71987–2017
Kawasaki, JP71993–1996
Fukushima, JP22019–2020
Edogawa-ku, JP21993–1994
Chiyoda-ku, JP12016