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Inventor

Seiichi Yoshikawa

Inventor
Tokyo, 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.

A24Dprimary
A24DCigars11%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
C02FTreatment of water, waste water, sewage, or sludge11%
F01DNon-positive displacement machines or engines, e.g. steam turbines11%
F02BInternal-combustion piston engines11%
F04DNon-positive-displacement pumps11%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants11%
G01MTesting static or dynamic balance of machines or structures11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
11,029,230Unbalance detection device, and unbalance detection method20214,700,723'Tobacco filter and fibrous ion exchange resin'19874,693,828'Method of ion-exchanging and/or adsorption'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to TORAY INDUSTRIES (2)· patent assignee history
1987Based in Shiga, JP· patent location history
1987Based in Koga, JP· patent location history
2021Patents assigned to MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TORAY INDUSTRIES21987
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD12021
Locations
LocationPatentsSpan
Tokyo, JP12021
Shiga, JP11987
Koga, JP11987