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Inventor

Osamu Hirao

Inventor
Uji, JP

Overview

7→
Patents
1985–2008
Patent span
Textiles
Primary field (CPC D)

Patents· 7 as inventor

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

D01Hprimary
D01HSpinning or twisting27%
D02GCrimping or curling fibres, filaments, threads, or yarns27%
A41BShirts9%
D02JFinishing or dressing of filaments, yarns, threads, cords, ropes or the like9%
D04BKnitting9%
H01CResistors9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
7,437,896'Sock and production method of the same'20085,934,058'Piecing method and apparatus for a spinning machine'19995,813,209'Piecing method and device for a spinning machine'19985,406,782'Drawing false-twisting method and a drawing false-twister'19955,136,835'False twisting method for yarns and false twisting apparatus therefor'19925,094,068'False twister for yarn'19924,540,971'Metal oxide varistor made by a co-precipation process and freeze-dried'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1985Based in Tokyo, JP· patent location history
1992–1999Patents assigned to MURATA MACHINERY LTD (5)· patent assignee history
1992–1999Based in Uji, JP· patent location history
2008Patents assigned to COOMA CO LTD (1)· patent assignee history
2008Based in Matsubara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MURATA MACHINERY LTD51992–1999
COOMA CO LTD12008
TOKYO SHIBAURA ELECTRIC CO11985
Locations
LocationPatentsSpan
Uji, JP51992–1999
Matsubara, JP12008
Tokyo, JP11985