Inventor

Tsuyoshi Yamakawa

Inventor
Kanagawa, JP

Overview

3→
Patents
1987–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

A61Bprimary
A61BDiagnosis14%
C23CCoating metallic material14%
F01DNon-positive displacement machines or engines, e.g. steam turbines14%
F16KValves14%
G01NInvestigating or analysing materials by determining their chemical or physical properties14%
H01FMagnets14%
Y02TClimate change mitigation technologies related to transportation14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to TEIJIN SEIKI CO LTD (1)· patent assignee history
1987Based in Fuwa-gun, JP· patent location history
2009Patents assigned to IHI CORP (1)· patent assignee history
2009Patents assigned to MITSUBISHI ELECTRIC CORP (1)· patent assignee history
2009Based in Chiyoda-ku, JP· patent location history
2021Patents assigned to JOB CORP (1)· patent assignee history
2021Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IHI CORP12009
JOB CORP12021
MITSUBISHI ELECTRIC CORP12009
TEIJIN SEIKI CO LTD11987
Locations
LocationPatentsSpan
Kanagawa, JP12021
Chiyoda-ku, JP12009
Fuwa-gun, JP11987