Inventor

Yoshun Yamamoto

Inventor

Kitakyushu, JP

Overview

1978–2021

Patent span

Performing operations

Primary field (CPC B)

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

B21Bprimary

B21BRolling of metal21%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material7%

B25JManipulators7%

C21DModifying the physical structure of ferrous metals7%

G06FElectric digital data processing7%

G10LSpeech analysis techniques or speech synthesis7%

H02JElectric power networks7%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems7%

H04MTelephonic communication7%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1978–1994Patents assigned to NIPPON STEEL CORP (4)· patent assignee history

1978–1994Based in Kitakyushu, JP· patent location history

2021Patents assigned to MURATA MANUFACTURING CO (1)· patent assignee history

2021Patents assigned to TOYOTA MOTOR CO LTD (1)· patent assignee history

2021Based in Nagaokakyo, JP· patent location history

2021Based in Azumino, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations