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Inventor

Toshihiko Koyama

Inventor
Tokyo, JP

Overview

5→
Patents
1976–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 5 as inventor

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

A61Bprimary
A61BDiagnosis17%
A61CDentistry8%
B25JManipulators8%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general8%
G01DMeasuring not specially adapted for a specific variable8%
G01SRadio direction-finding8%
G05BControl or regulating systems in general8%
H02KDynamo-electric machines8%
H04WWireless communication networks8%
Y02ATechnologies for adaptation to climate change8%
PatentTitleYear
10,965,184Rotary electric machine202110,694,998Moving body information detection terminal20209,833,898Positioning control apparatus20178,920,169'Mouth opening instrument and method'20143,963,445'Exhaust emission control device of the catalyst type'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to NIPPON DENSO CO (1)· patent assignee history
1976Based in Kariya, JP· patent location history
2014–2017Patents assigned to DENSO CORP (2)· patent assignee history
2014–2017Patents assigned to UNIV KYUSHU NAT UNIV CORP (2)· patent assignee history
2014–2017Based in Anjo, JP· patent location history
2020Patents assigned to ASIA AIR SURVEY CO LTD (1)· patent assignee history
2020–2021Based in Tokyo, JP· patent location history
2021Patents assigned to HITACHI INDUSTRIAL PRODUCTS LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DENSO CORP22014–2017
UNIV KYUSHU NAT UNIV CORP22014–2017
ASIA AIR SURVEY CO LTD12020
HITACHI INDUSTRIAL PRODUCTS LTD12021
NIPPON DENSO CO11976
Locations
LocationPatentsSpan
Tokyo, JP22020–2021
Anjo, JP22014–2017
Kariya, JP11976