Inventor

Hajime Yoshioka

Inventor

Kyoto, JP

Overview

1989–2021

Patent span

Performing operations

Primary field (CPC B)

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

B23Fprimary

B23FMaking gears or toothed racks9%

B23PMetal-working not otherwise provided for9%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling9%

B24BMachines, devices, or processes for grinding or polishing9%

B24DTools for grinding, buffing or sharpening9%

F01CRotary-piston or oscillating-piston machines or engines9%

F02BInternal-combustion piston engines9%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids9%

F16HGearing9%

Y02TClimate change mitigation technologies related to transportation9%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1989–1992Patents assigned to MITSUBISHI HEAVY IND LTD (2)· patent assignee history

1989–1992Based in Kyoto, JP· patent location history

2021Patents assigned to MAZDA MOTOR (1)· patent assignee history

2021Based in Hiroshima, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI HEAVY IND LTD	2	1989–1992
MAZDA MOTOR	1	2021

Locations

Location	Patents	Span
Kyoto, JP	2	1989–1992
Hiroshima, JP	1	2021