Inventor

Kozo Ishikawa

Inventor

Hyogo, JP

Overview

1981–2016

Patent span

Electricity

Primary field (CPC H)

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

H10Dprimary

H10DInorganic electric semiconductor devices25%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1020%

H01LSemiconductor devices15%

B61LGuiding railway traffic5%

G01CMeasuring distances, levels or bearings5%

G07CTime or attendance registers5%

G10LSpeech analysis techniques or speech synthesis5%

H04HBroadcast communication5%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers5%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to JAPAN NATIONAL RAILWAY (2)· patent assignee history

1981Based in Yokohama, JP· patent location history

2012–2016Patents assigned to RENESAS ELECTRONICS CORP (5)· patent assignee history

2012–2016Patents assigned to ISHIKAWA KOZO (4)· patent assignee history

2012–2016Patents assigned to IWAMATSU TOSHIAKI (4)· patent assignee history

2012–2016Patents assigned to HAYASHI KIYOSHI (3)· patent assignee history

2012–2016Based in Hyogo, JP· patent location history

2013–2014Based in Itami, JP· patent location history

2016Based in Tokyo, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations