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Inventor

Ikuo Igami

Inventor
Tokyo, JP

Overview

7→
Patents
1976–1997
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.

B01Dprimary
B01DSeparation17%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons17%
F16KValves17%
A61LMethods or apparatus for sterilising materials or objects in general8%
C02FTreatment of water, waste water, sewage, or sludge8%
D21HPulp compositions8%
E03BInstallations or methods for obtaining, collecting, or distributing water8%
E03CDomestic plumbing installations for fresh water or waste water8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,653,868'Diverter and water purifier having same'1997D0328942'Water purifier'19924,972,876'Liquid directional control valve'19904,772,390'Water purifying method and system'19884,000,960'Apparatus for manufacturing synthetic tow for stretch-cut spinning process'19773,957,573'Process for producing insulating paper where the paper is frictionally calendered'19763,953,161'Apparatus for manufacturing synthetic tow for stretch-cut spinning process'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1997Patents assigned to MITSUBISHI RAYON CO (6)· patent assignee history
1976Patents assigned to DAINICHI NIPPON CABLES LTD (1)· patent assignee history
1976–1977Based in Nagoya, JP· patent location history
1976Based in Tomei, JA· patent location history
1988Based in Toyoake, JP· patent location history
1990–1997Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI RAYON CO61976–1997
DAINICHI NIPPON CABLES LTD11976
Locations
LocationPatentsSpan
Tokyo, JP31990–1997
Nagoya, JP21976–1977
Toyoake, JP11988
Tomei, JA11976