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Inventor

Seishi Masaki

Inventor
Kobe, JP

Overview

6→
Patents
1978–1997
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.

C25Dprimary
C25DProcesses for the electrolytic or electrophoretic production of coatings75%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%
PatentTitleYear
5,651,873'Electroplating solution for forming Pb-Sn alloy bump electrodes on semiconductor wafer surface'19975,618,404'Electrolytic process for producing lead sulfonate and tin sulfonate for solder plating use'19974,673,470'Tin, lead, or tin-lead alloy plating bath'19874,555,314'Tin-lead alloy plating bath'19854,459,185'Tin, lead, and tin-lead alloy plating baths'19844,128,460'Coloring by electrolysis of aluminum or aluminum alloys'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to DAIWA KASEI KENKYUSHO (1)· patent assignee history
1978–1997Based in Kobe, JP· patent location history
1984Patents assigned to ISHIBARA CHEM (1)· patent assignee history
1985Patents assigned to ISHIHAA CHEMICAL CO LTD (1)· patent assignee history
1987–1997Patents assigned to DAIWA FINE CHEMICALS CO LTD (3)· patent assignee history
1987Patents assigned to DOHI NOBUYASU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAIWA FINE CHEMICALS CO LTD31987–1997
DAIWA KASEI KENKYUSHO11978
DOHI NOBUYASU11987
ISHIBARA CHEM11984
ISHIHAA CHEMICAL CO LTD11985
Locations
LocationPatentsSpan
Kobe, JP61978–1997