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Inventor

Eiji Okumachi

Inventor
Sanda, JP

Overview

7→
Patents
1995–2014
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

F16Jprimary
F16JPistons64%
F16CShafts27%
B01FMixing, e.g. dissolving, emulsifying or dispersing9%
PatentTitleYear
8,770,589'Shaft-seal device for high-temperature fluid'20146,431,551'Non-contact type mechanical seal'20026,325,378'Shaft seal apparatus'20015,664,787'Non-contacting shaft sealing device'19975,529,318'Non-contacting shaft sealing device'19965,501,470'Non-contacting shaft sealing device with grooved face pattern'19965,398,943'Seal device of the non-contact type'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2002Patents assigned to NIPPON PILLAR PACKING (6)· patent assignee history
1995Based in Kobe, JP· patent location history
1996–2014Based in Sanda, JP· patent location history
2001Based in Hyogo, JP· patent location history
2014Patents assigned to HASHIMOTO TAIJI (1)· patent assignee history
2014Patents assigned to HITACHI LTD (1)· patent assignee history
2014Patents assigned to HU TAO (1)· patent assignee history
2014Patents assigned to NINOMIYA MASANOBU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON PILLAR PACKING61995–2002
HASHIMOTO TAIJI12014
HITACHI LTD12014
HU TAO12014
NINOMIYA MASANOBU12014
Locations
LocationPatentsSpan
Sanda, JP51996–2014
Hyogo, JP12001
Kobe, JP11995