Inventor

Yasuhiko Fujiwara

Inventor

Yokohama, JP

Overview

1976–2000

Patent span

Performing operations

Primary field (CPC B)

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

B62Dprimary

B62DMotor vehicles15%

F16FSprings15%

B60GVehicle suspension arrangements8%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for8%

C21BManufacture of iron or steel8%

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel8%

F02DControlling combustion engines8%

F02PIgnition, other than compression ignition, for internal-combustion engines8%

H01HElectric switches8%

Y02PClimate change mitigation technologies in the production or processing of goods8%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1976–1991Patents assigned to NISSAN MOTOR (7)· patent assignee history

1976–1977Based in Yokohama, JP· patent location history

1989Patents assigned to HITACHI LTD (1)· patent assignee history

1989–1991Based in Kanagawa, JP· patent location history

1990Based in Tsukui, JP· patent location history

2000Patents assigned to NIPPON STEEL CORP (1)· patent assignee history

2000Based in Tokai, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations