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Inventor

Hiroyuki Motohashi

Inventor
Tokorozawa, JP

Overview

2→
Patents
1993–2002
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer50%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
H04NPictorial communication, e.g. television25%
PatentTitleYear
6,381,399'Image information reproducing apparatus'20025,212,657'Kinetofrictional force testing apparatus'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to KOYO PRECISION INSTR INC (1)· patent assignee history
1993Patents assigned to ONODA CEMENT CO LTD (1)· patent assignee history
1993Based in Tokyo, JP· patent location history
2002Patents assigned to PIONEER ELECTRONIC CORP (1)· patent assignee history
2002Based in Tokorozawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOYO PRECISION INSTR INC11993
ONODA CEMENT CO LTD11993
PIONEER ELECTRONIC CORP12002
Locations
LocationPatentsSpan
Tokorozawa, JP12002
Tokyo, JP11993