Inventor

Yoshifusa Hara

Inventor

Tokyo, JP

Overview

6→

Patents

1987–2013

Patent span

Chemistry

Primary field (CPC C)

Patents· 6 as inventor

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

C07Fprimary

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium25%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds17%

A01NPreservation of bodies of humans or animals or plants or parts thereof8%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials8%

D06PDyeing or printing textiles8%

H05KPrinted circuits8%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

8,357,822'Process for producing high-purity chlorophosphite'2013 7,271,225'Phosphorus-containing epoxy resin, phosphorus-containing epoxy resin composition, process for producing the resin, sealant containing the composition, molding material containing the composition, and laminate containing the composition'2007 6,649,728'Catalyst for curing epoxy resins, method for making the same, epoxy resin composition, and powder coating composition'2003 5,550,275'Method of preparing diarylchlorophosphate'1996 5,147,409'Agent and method for treating wool fibers wherein the agent is tris(hydroxypropyl)phosphine and/or alkylene oxide addition products thereof'1992 4,694,095'Phosphoric acid dithioesters, and insecticides containing said dithioesters'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2013Patents assigned to NIPPON CHEMICAL IND (6)· patent assignee history

1987Patents assigned to HIRONORI KUSHIBIKI (1)· patent assignee history

1987–2013Based in Tokyo, JP· patent location history

1992Patents assigned to CHIYODA SHOJI KK (1)· patent assignee history

1992Patents assigned to KOIZUMI KAGAKU KK (1)· patent assignee history

2013Patents assigned to HARA YOSHIFUSA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON CHEMICAL IND	6	1987–2013
CHIYODA SHOJI KK	1	1992
HARA YOSHIFUSAself	1	2013
HIRONORI KUSHIBIKI	1	1987
KOIZUMI KAGAKU KK	1	1992

Locations

Location	Patents	Span
Tokyo, JP	6	1987–2013