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Inventor

Mitsuhiko Yamaguchi

Inventor
Fujisawa, JP

Overview

3→
Patents
1983–1998
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H01Rprimary
H01RElectrically-conductive connections40%
Y10TTechnical subjects covered by former us classification40%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers20%
PatentTitleYear
5,826,324'Method of manufacturing flat-type commutator'19985,760,518'Flat-type commutator and method for its manufacture'19984,367,377'Horn loudspeaker with particular suspension and lead wire passage'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to NIPPON MUSICAL INSTRUMENTS MFG (1)· patent assignee history
1983Based in Hamamatsu, JP· patent location history
1998Patents assigned to AUPAC KK (2)· patent assignee history
1998Based in Fujisawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AUPAC KK21998
NIPPON MUSICAL INSTRUMENTS MFG11983
Locations
LocationPatentsSpan
Fujisawa, JP21998
Hamamatsu, JP11983