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Inventor

Akihiko Toda

Inventor
Hamamatsu, JP

Overview

13→
Patents
1995–2017
Patent span
Electricity
Primary field (CPC H)

Patents· 13 as inventor

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

H03Mprimary
H03MCoding29%
C07CAcyclic or carbocyclic compounds12%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients12%
H03KPulse technique12%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers12%
A61BDiagnosis6%
G01RMeasuring electric variables6%
H03FAmplifiers6%
H04LTransmission of digital information, e.g. telegraphic communication6%
PatentTitleYear
9,560,457'Plug connector'20179,535,102'Test signal supplying device and semiconductor integrated circuit'20179,138,146'Biological optical measurement instrument and reference image display method'20156,961,014'D/A converter'20056,791,392'Circuit for shifting an input signal level including compensation for supply voltage variation'20046,724,333'Digital-to-analog converter'20046,696,877'Level shift circuit'20046,522,280'Adjustable digital-to-analog converter'20036,329,551'Phenylenediamine derivative, production method thereof and antioxidant for rubber using it as effective constituent'20016,093,853'Phenylenediamine derivative, production method thereof and antioxidant for rubber using it as effective constituent'20005,982,204'Information-discriminating circuit'19995,894,281'Digital-to-analog converter utilizing MOS transistor switching circuit with accompanying dummy gates to set same effective gate capacitance'19995,402,127'Digital-to-analog converter'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2017Patents assigned to YAMAHA CORP (10)· patent assignee history
1995–2017Based in Hamamatsu, JP· patent location history
2000–2001Patents assigned to NOK CORP (2)· patent assignee history
2000–2001Based in Ibaraki, JP· patent location history
2015Patents assigned to FUJIWARA MICHIYUKI (1)· patent assignee history
2015Patents assigned to HITACHI MEDICAL CORP (1)· patent assignee history
2015Patents assigned to KAWASAKI SHINGO (1)· patent assignee history
2015Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
YAMAHA CORP101995–2017
NOK CORP22000–2001
FUJIWARA MICHIYUKI12015
HITACHI MEDICAL CORP12015
KAWASAKI SHINGO12015
Locations
LocationPatentsSpan
Hamamatsu, JP101995–2017
Ibaraki, JP22000–2001
Tokyo, JP12015