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Inventor

Shuichi Yamashina

Inventor
Tokyo, JP

Overview

6→
Patents
1987–2002
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

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

B21Bprimary
B21BRolling of metal29%
B21JForging21%
G11BInformation storage based on relative movement between record carrier and transducer14%
Y10TTechnical subjects covered by former us classification14%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material7%
B29CShaping or joining of plastics7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
6,467,323'Plate reduction press apparatus and methods'20026,463,652'Apparatus and methods for manufacturing hot rolled steel sheets'20026,341,516'Plate reduction press apparatus and methods'20026,200,245'Apparatus and method for changing dies'20014,893,766'Tape cassette having a front lid and a back lid'19904,646,189'Magnetic tape cassette with door opening mechanism'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1990Patents assigned to SONY CORP (2)· patent assignee history
1987Based in Kanagawa, JP· patent location history
1990Based in Tochigi, JP· patent location history
2001–2002Patents assigned to NIPPON KOKAN KK (4)· patent assignee history
2001–2002Patents assigned to ISHIKAWAJIMA HARIMA HEAVY IND (3)· patent assignee history
2001–2002Based in Tokyo, JP· patent location history
2002Patents assigned to ISHIKAWAJMA HARIMA HEAVY IND C (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON KOKAN KK42001–2002
ISHIKAWAJIMA HARIMA HEAVY IND32001–2002
SONY CORP21987–1990
ISHIKAWAJMA HARIMA HEAVY IND C12002
Locations
LocationPatentsSpan
Tokyo, JP42001–2002
Tochigi, JP11990
Kanagawa, JP11987