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Inventor

Hajime Itoh

Inventor
Hiroshima, JP

Overview

35→
Patents
1983–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 35 as inventor

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

C03Bprimary
C03BManufacture, shaping, or supplementary processes17%
B01DSeparation13%
Y10TTechnical subjects covered by former us classification12%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons9%
C08JWorking-up8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y02PClimate change mitigation technologies in the production or processing of goods6%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%
B29CShaping or joining of plastics3%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts3%
PatentTitleYear
9,636,622'Accumulator'20179,073,772'Conduit structure for molten glass, vacuum degassing apparatus, vacuum degassing method for molten glass and process for producing glass products employing said conduit structure'20158,997,526'Vacuum degassing apparatus and vacuum degassing method for molten glass'20158,720,229'Vacuum degassing apparatus, apparatus for producing glass products and process for producing glass products'20148,468,851'Vacuum degassing apparatus and vacuum degassing method for molten glass'20138,347,654'Vacuum degassing apparatus and vacuum degassing method for molten glass'20138,136,373'Conduit structure for molten glass and vacuum degassing apparatus using the conduit structure'20128,019,206'Glass manufacturing apparatus and a structural member thereof'20118,009,970'Method for electrically energizing and heating platinum composite tube structure'20117,941,038'Glass manufacturing apparatus, a structural member thereof and method for heating the structural member by conduction heating'20117,650,764'Vacuum degassing apparatus for molten glass'20107,007,514'Vacuum degassing apparatus for molten glass'20067,000,432'Process for producing a glass for cathode ray tubes'20066,948,338'Vacuum degassing apparatus for molten glass'20056,551,705'Chitosan-containing acrylic fibers and process for preparing the same'20036,524,508'Process of making chitosan-containing acrylic fibers'20035,955,169'Floppy disk'19995,429,871'Reversibly color-changing shaped material and process for producing the same'19955,264,531'Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom'19935,260,131'Water-repellent hygroscopic fiber'19935,252,396'Reversibly color-changing shaped material and process for producing the same'19935,234,766'Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom'19935,097,011'Process for preparing acrylonitrile polymer film'19925,085,515'Method and apparatus for inspecting quality of manufactured articles'19924,961,853'Porous membranes and production processes thereof'19904,919,810'Porous membrane'19904,876,289'Hydrophilized porous membrane and production process thereof'19894,869,857'Process for producing porous membranes'19894,802,942'Method of making multilayer composite hollow fibers'19894,717,479'Hydrophilized porous polyolefin membrane and production process thereof'19884,713,292'Multilayer composite hollow fibers and method of making same'19874,695,592'Hydrophilized porous membrane and production process thereof'19874,678,813'Hydrophilized porous polyolefin membrane and production process thereof'19874,422,024'Wiper control device for vehicle'19834,413,424'Azimuth determinating apparatus'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2003Patents assigned to MITSUBISHI RAYON CO (18)· patent assignee history
1987–1995Based in Hiroshima, JP· patent location history
1993–2003Based in Otake, JP· patent location history
2005–2015Patents assigned to ASAHI GLASS CO LTD (13)· patent assignee history
2005–2010Based in Kanagawa, JP· patent location history
2006–2011Based in Yokohama, JP· patent location history
2012–2014Patents assigned to ITOH HAJIME (4)· patent assignee history
2012–2014Based in Tokyo, JP· patent location history
2013–2014Patents assigned to YAMAMICHI HIRONOBU (3)· patent assignee history
2013Patents assigned to ENDO YUJI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI RAYON CO181987–2003
ASAHI GLASS CO LTD132005–2015
ITOH HAJIMEself42012–2014
YAMAMICHI HIRONOBU32013–2014
ENDO YUJI22013
Locations
LocationPatentsSpan
Hiroshima, JP111987–1995
Otake, JP71993–2003
Tokyo, JP42012–2014
Yokohama, JP42006–2011
Kanagawa, JP32005–2010