Inventor

Masayuki Umeno

Inventor

Chigasaki, JP

Overview

4→

Patents

1986–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 4 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 tellurium18%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1018%

Y10TTechnical subjects covered by former us classification18%

A01NPreservation of bodies of humans or animals or plants or parts thereof9%

C07DHeterocyclic compounds9%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%

C08LCompositions of macromolecular compounds9%

C09DCoating compositions, e.g. paints, varnishes or lacquers9%

PatentTitleYear

6,274,251'Semiconductor encapsulating epoxy resin composition and semiconductor device'2001 6,168,872'Semiconductor encapsulating epoxy resin composition and semiconductor device'2001 4,761,493'Preparation process of quaternary phosphonium hydroxide'1988 4,613,373'Tetraarylboron-ammonium complexes and their uses'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2001Patents assigned to HOKKO CHEM IND CO (4)· patent assignee history

1986Patents assigned to MITSUI SHIPBUILDING ENG (1)· patent assignee history

1986Patents assigned to NIPPON PAINT CO LTD (1)· patent assignee history

1986–2001Based in Chigasaki, JP· patent location history

2001Patents assigned to SHIN-ETSU CHEMICAL CO (1)· patent assignee history

2001Patents assigned to SHINETSU CHEMICAL CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOKKO CHEM IND CO	4	1986–2001
MITSUI SHIPBUILDING ENG	1	1986
NIPPON PAINT CO LTD	1	1986
SHIN-ETSU CHEMICAL CO	1	2001
SHINETSU CHEMICAL CO	1	2001

Locations

Location	Patents	Span
Chigasaki, JP	4	1986–2001