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Inventor

Hitoshi Narusawa

Inventor
Oume, JP

Overview

4→
Patents
1992–2004
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H01Gprimary
H01GCapacitors40%
G11BInformation storage based on relative movement between record carrier and transducer20%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
6,674,868'Hearing aid'20046,605,127'Method of manufacturing an aluminum solid electrolyte capacitor'20035,580,358'Method for making a electrolytic capacitor'19965,151,831'Digital signal processing circuit'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to NAKAMICHI CORP (1)· patent assignee history
1992Based in Tokyo, JP· patent location history
1996–2004Patents assigned to SHOEI CO LTD (3)· patent assignee history
1996–2004Based in Oume, JP· patent location history
2003–2004Patents assigned to ADPHOX CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHOEI CO LTD31996–2004
ADPHOX CORP22003–2004
NAKAMICHI CORP11992
Locations
LocationPatentsSpan
Oume, JP31996–2004
Tokyo, JP11992