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Inventor

Susumu Yamakawa

Inventor
Kobe, JP

Overview

5→
Patents
1984–1994
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

F02Bprimary
F02BInternal-combustion piston engines30%
F16HGearing30%
F16GBelts, cables, or ropes, predominantly used for driving purposes10%
G01MTesting static or dynamic balance of machines or structures10%
G06VImage or video recognition or understanding10%
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing10%
PatentTitleYear
5,362,280'Power transmission system'19945,195,932'Compact coil spring tensioner'19934,983,145'Apparatus for automatically tensioning a drive belt'19914,920,788'Rotation variation testing machine'19904,464,786'System for identifying currency note'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1984Based in Yokohama, JP· patent location history
1990–1994Patents assigned to MITSUBOSHI BELTING LTD (3)· patent assignee history
1990–1994Based in Kobe, JP· patent location history
1993Patents assigned to MITSUBOSHI BELTING (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBOSHI BELTING LTD31990–1994
MITSUBOSHI BELTING11993
TOKYO SHIBAURA ELECTRIC CO11984
Locations
LocationPatentsSpan
Kobe, JP41990–1994
Yokohama, JP11984