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Inventor

Yoshiyuki Kaku

Inventor
Tokyo, JP

Overview

6→
Patents
1998–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 6 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication25%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers25%
LOC1325%
H04BTransmission13%
H04JMultiplex communication13%
PatentTitleYear
11,012,172Relay device202110,958,475Repeater device202110,674,273Speaker unit and acoustic device20208,995,695'Speaker apparatus'2015D0400170'Coaxial connector'1998D0399047'Modular plug'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to SMK KK (2)· patent assignee history
1998–2020Based in Tokyo, JP· patent location history
2015–2020Patents assigned to SONY CORP (2)· patent assignee history
2015Patents assigned to IWAMI YOSHIHIRO (1)· patent assignee history
2015Patents assigned to KAKU YOSHIYUKI (1)· patent assignee history
2021Patents assigned to DENSO CORP (2)· patent assignee history
2021Based in Kariya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DENSO CORP22021
SMK KK21998
SONY CORP22015–2020
IWAMI YOSHIHIRO12015
KAKU YOSHIYUKIself12015
Locations
LocationPatentsSpan
Tokyo, JP41998–2020
Kariya, JP22021