Inventor

Kenji Hirai

Inventor
Kanagawa, JP

Overview

28→
Patents
1985–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 28 as inventor

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

C07Dprimary
C07DHeterocyclic compounds39%
A01NPreservation of bodies of humans or animals or plants or parts thereof25%
C07CAcyclic or carbocyclic compounds25%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
C12NMicroorganisms or enzymes2%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
PatentTitleYear
9,580,444'Polycyclic pyrazolinone derivative and herbicide comprising same as effective component thereof'20177,863,460'Process for producing 1-substituted-3-fluoroalkylpyrazole-4-carboxylate'20117,767,827'Pyrazole-1-carboxylate derivatives, process for the production thereof and process for the production of pyrazole derivatives'20107,700,786'Pyrazole derivative, intermediate therefor, processes for producing these, and herbicide containing these as active ingredient'20106,548,511'Insecticidal/acaricidal agents'20036,090,946'Process for the preparation of 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,4-dione derivatives'20005,886,211'Process for producing 2-(halomethyl)phenylacetic acid esters'19995,883,049'Hydantoin derivatives and herbicides containing said derivatives as active ingredient'19995,639,915'Process for the production of aniline derivatives'19975,612,289'4-imino-oxazolidine-2-one derivatives, a process for producing such derivatives and a herbicide containing them as an active ingredient'19975,554,581'Tetrahydrophthalamide derivative, intermediate for producing the same, production of both, and herbicide containing the same as active ingredient'19965,506,190'Tetrahydrophthalamide derivative, intermediate for producing the same, production of both, and herbicide containing the same as active ingredient'19965,464,811'Benzene derivatives substituted with heterocyclic ring and herbicides containing same as active ingredients'19955,424,277'Benzene derivatives substituted with heterocyclic ring, and herbicides containing same as active ingredients'19955,391,807'Methods of preparing fluorobenzene derivatives and related compounds'19955,344,953'Fluorobenzene derivatives'19945,281,742'Bis(fluorophenyl) carbonate derivatives'19945,198,013'Benzoxazinone compounds and herbicidal composition containing the same'19935,100,457'Oxazolidinedione compounds, the process for preparing the same and herbicidal composition containing the same'19925,053,557'Process for preparing 2-chloro-4-fluorophenol'19915,028,738'Process for producing 2-oxo-3-aromatic carboxylic acid derivatives'19915,024,692'Herbicidal composition and herbicidal method'19914,983,751'Oxazolidinedione derivatives, method of producing the derivatives, and herbicides containing the derivatives'19914,902,337'Herbicidal hydantoin derivatives'19904,849,345'L-phenylalanine dehydrogenase and use thereof'19894,818,272'Oxazolidinedione derivatives, method of producing the derivatives, and herbicides containing the derivatives'19894,621,150'Catalyst and method for isomerization'19864,497,964'Process for production of N-acyl-.alpha.-amino acids'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2011Patents assigned to SAGAMI CHEM RES (27)· patent assignee history
1985–2010Based in Sagamihara, JP· patent location history
1989–2017Patents assigned to KAKEN PHARMA CO LTD (20)· patent assignee history
1989–1995Patents assigned to CHISSO CORP (8)· patent assignee history
1989–2011Based in Kanagawa, JP· patent location history
1999Patents assigned to IHARANIKKEI CHEMICAL INDUSTRY (1)· patent assignee history
2011Patents assigned to JAPAN FINECHEM COMPANY INC (1)· patent assignee history
2017Based in Ayase, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAGAMI CHEM RES271985–2011
KAKEN PHARMA CO LTD201989–2017
CHISSO CORP81989–1995
IHARANIKKEI CHEMICAL INDUSTRY11999
JAPAN FINECHEM COMPANY INC12011
Locations
LocationPatentsSpan
Kanagawa, JP201989–2011
Sagamihara, JP71985–2010
Ayase, JP12017