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Inventor

Keiichi Ohnishi

Inventor
Yokohama, JP

Overview

16→
Patents
1987–2009
Patent span
Chemistry
Primary field (CPC C)

Patents· 16 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds48%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry12%
C08JWorking-up12%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%
C08LCompositions of macromolecular compounds8%
C03CChemical composition of glasses, glazes or vitreous enamels4%
C07DHeterocyclic compounds4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
7,557,227'Process for producing hexafluoropropylene oxide'20096,534,683'Process for producing fluorinated alkylamine compound'20036,414,203'Method of treating 1,1,1,3,3-pentafluoropropane'20026,191,327'Method for producing dichloropentafluoropropanes'20016,124,511'Method for producing a hydrogen-containing fluorinated alkane'20005,895,793'Fluorine-containing hydrocarbon composition'19995,789,455'Fluorine-containing hydrocarbon composition'19985,663,464'Method for producing1,1,1,3,3-pentafluoropropane'19975,663,543'Method for producing a polyfluoropropionyl halide'19975,608,126'Process for preparing 1,1,1,3,3-pentafluoropropane'19975,545,777'Process for producing a hydrogen-containing 2,2-difluoropropane'19965,434,321'Method for producing dichloropentafluoropropanes'19955,264,639'Process for producing a 2,2-difluoropropane'19935,227,547'Method for producing dichloropentafluoropropanes'19935,220,084'Method for producing dichloropentafluoropropanes'19934,687,707'Low reflectance transparent material having antisoiling properties'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2009Patents assigned to ASAHI GLASS CO LTD (14)· patent assignee history
1987–2001Based in Yokohama, JP· patent location history
1997Patents assigned to AG TECHNOLOGY CORP (2)· patent assignee history
2002–2009Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI GLASS CO LTD141987–2009
AG TECHNOLOGY CORP21997
Locations
LocationPatentsSpan
Yokohama, JP131987–2001
Kanagawa, JP32002–2009