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Inventor

Hiromitsu Mitsui

Inventor
Hitachi, JP

Overview

3→
Patents
1981–1992
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B21Bprimary
B21BRolling of metal20%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling20%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables20%
G04CElectromechanical clocks or watches20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
5,119,656'Rolling mill with offset work rolls positioned and controlled by support rolls and method of using same'19924,613,093'Apparatus for looping belt-like materials'19864,296,489'Electronic timepiece'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to SUWA SEIKOSHA KK (1)· patent assignee history
1981Based in Suwa, JP· patent location history
1986–1992Patents assigned to HITACHI LTD (2)· patent assignee history
1986–1992Based in Hitachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD21986–1992
SUWA SEIKOSHA KK11981
Locations
LocationPatentsSpan
Hitachi, JP21986–1992
Suwa, JP11981