LexDanaLexDanabeta
Inventor

Kiyomi Yamaguchi

Inventor
Hadano, JP

Overview

3→
Patents
1979–1992
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

B24Bprimary
B24BMachines, devices, or processes for grinding or polishing20%
C22BProduction and refining of metals20%
C25CProcesses for the electrolytic production, recovery or refining of metals20%
G11BInformation storage based on relative movement between record carrier and transducer20%
Y02PClimate change mitigation technologies in the production or processing of goods20%
PatentTitleYear
5,093,751'Carry noise measuring system for magnetic recording medium'19924,404,071'Method of treating electrolytic solution of copper for purification and reuse thereof'19834,172,338'Apparatus for grinding or polishing article having cylindrical or curved surface'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to ASAHI GLASS CO LTD (1)· patent assignee history
1979Based in Funabashi, JP· patent location history
1983Patents assigned to DOWA MINING CO (1)· patent assignee history
1983Based in Kosaka, JP· patent location history
1992Patents assigned to HITACHI ELECTR ENG (1)· patent assignee history
1992Based in Hadano, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASAHI GLASS CO LTD11979
DOWA MINING CO11983
HITACHI ELECTR ENG11992
Locations
LocationPatentsSpan
Hadano, JP11992
Kosaka, JP11983
Funabashi, JP11979