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Inventor

Masami Ishihara

Inventor
Kawagoe, JP

Overview

11→
Patents
1982–2010
Patent span
Chemistry
Primary field (CPC C)

Patents· 11 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds28%
C07DHeterocyclic compounds22%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices22%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds11%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds6%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms6%
PatentTitleYear
7,833,691'Heterocycle-bearing onium salts'20107,318,991'Heterocycle-bearing onium salts'20087,101,918'Hybrid type onium salt'20066,924,323'Sulfonium salt compound'20055,254,688'Process for producing pyrido[1,2-a]pyrimidine derivative'19935,081,243'Process for producing 3-tetrazolyl pyrido[1,2-a]pyrimidine derivatives'19925,000,880'Novel process for producing phosphatidylcholine derivatives'19914,973,740'Process for producing tricyclodecanecarboxylic acid esters'19904,851,572'.gamma.-L-glutamyl-4-nitroanilide derivatives and process for determining .gamma.-GTP activity using the same'19894,578,499'Oxalic acid ester derivatives'19864,334,080'Process for producing benzene carboxylic acid ester'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1990Patents assigned to MITSUBISHI GAS CHEMICAL CO (2)· patent assignee history
1982Based in Kurashiki, JP· patent location history
1986–2010Patents assigned to WAKO PURE CHEM IND LTD (9)· patent assignee history
1986–2005Based in Saitama, JP· patent location history
1989–2010Based in Kawagoe, JP· patent location history
1990Patents assigned to KAO CORP (1)· patent assignee history
1990Based in Okayama, JP· patent location history
1992Patents assigned to TOKYO TANABE CO (1)· patent assignee history
1993Based in Fukaya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WAKO PURE CHEM IND LTD91986–2010
MITSUBISHI GAS CHEMICAL CO21982–1990
KAO CORP11990
TOKYO TANABE CO11992
Locations
LocationPatentsSpan
Kawagoe, JP61989–2010
Saitama, JP21986–2005
Fukaya, JP11993
Okayama, JP11990
Kurashiki, JP11982