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Inventor

Yasuhiro Niimura

Inventor
Ayase, JP

Overview

5→
Patents
1992–2001
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

B01Dprimary
B01DSeparation20%
C23CCoating metallic material20%
F04BPositive-displacement machines for liquids10%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids10%
F16CShafts10%
F16NLubricating10%
F25BRefrigeration machines, plants or systems10%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]10%
PatentTitleYear
6,332,925'Evacuation system'20016,251,192'Vacuum exhaust system'20015,746,790'Trap for collecting solid'19985,312,192'Bearing lubricating structure for rotary machinery'19945,173,041'Multistage vacuum pump with interstage solid material collector and cooling coils'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2001Patents assigned to EBARA CORP (5)· patent assignee history
1992Based in Tokyo, JP· patent location history
1994Based in Kanagawa, JP· patent location history
1998–2001Based in Ayase, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EBARA CORP51992–2001
Locations
LocationPatentsSpan
Ayase, JP31998–2001
Kanagawa, JP11994
Tokyo, JP11992