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Inventor

Masaaki Kuwahara

Inventor
Itami, JP

Overview

4→
Patents
1990–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

C07Dprimary
C07DHeterocyclic compounds25%
A61BDiagnosis13%
B60LPropulsion of electrically-propelled vehicles13%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology13%
G10KSound-producing devices13%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters13%
Y02TClimate change mitigation technologies related to transportation13%
PatentTitleYear
10,978,984Electric vehicle20215,202,324'Imidazopyridazines'19935,155,108'Imidazopyridazines and use as antiasthmatic agents'19924,893,614'Apparatus for disintegrating a calculus by an underwater shock wave from outside the human body'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to YACHIYODA SANGYO CO LTD (1)· patent assignee history
1990Based in Miyagi, JP· patent location history
1992–1993Patents assigned to TAKEDA CHEMICAL INDUSTRIES LTD (2)· patent assignee history
1992–1993Based in Itami, JP· patent location history
2021Patents assigned to SUBARU CORP (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAKEDA CHEMICAL INDUSTRIES LTD21992–1993
SUBARU CORP12021
YACHIYODA SANGYO CO LTD11990
Locations
LocationPatentsSpan
Itami, JP21992–1993
Tokyo, JP12021
Miyagi, JP11990