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Inventor

Masahiro Yokota

Inventor
Chiba, JP

Overview

13→
Patents
1989–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 13 as inventor

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

C07Dprimary
C07DHeterocyclic compounds26%
A01NPreservation of bodies of humans or animals or plants or parts thereof14%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations11%
A61KPreparations for medical, dental or toiletry purposes9%
C07CAcyclic or carbocyclic compounds6%
A44BButtons, pins, buckles, slide fasteners, or the like3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling3%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material3%
B21FWorking or processing of metal wire3%
PatentTitleYear
10,918,171Copper alloy fastener element and slide fastener202110,196,363Dihydropyrimidin-2-one compounds and medical use thereof20198,604,069'Amide compound and medicinal use thereof'20138,283,465'Triazolopyridine compound, and action thereof as prolyl hydroxylase inhibitor or erythropoietin production-inducing agent'20128,017,612'Piperazine compound and use thereof as a HCV polymerase inhibitor'20116,632,959'Basic catalysts and process for producing carbonyl compound derivatives'20035,252,397'Modified polyester resin and hot-melt-adhesive conjugate fibers using the same'19935,198,013'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'19925,024,692'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'19904,818,272'Oxazolidinedione derivatives, method of producing the derivatives, and herbicides containing the derivatives'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2003Patents assigned to CHISSO CORP (8)· patent assignee history
1989–1993Patents assigned to KAKEN PHARMA CO LTD (6)· patent assignee history
1989–1993Patents assigned to SAGAMI CHEM RES (6)· patent assignee history
1989–1993Based in Chiba, JP· patent location history
1991–2003Based in Ichihara, JP· patent location history
2011–2019Patents assigned to JAPAN TOBACCO INC (4)· patent assignee history
2011–2012Based in Takatsuki, JP· patent location history
2012–2013Patents assigned to YOKOTA MASAHIRO (2)· patent assignee history
2013–2019Based in Osaka, JP· patent location history
2021Based in Kurobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHISSO CORP81989–2003
KAKEN PHARMA CO LTD61989–1993
SAGAMI CHEM RES61989–1993
JAPAN TOBACCO INC42011–2019
YOKOTA MASAHIROself22012–2013
Locations
LocationPatentsSpan
Chiba, JP51989–1993
Ichihara, JP31991–2003
Osaka, JP22013–2019
Takatsuki, JP22011–2012
Kurobe, JP12021