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Inventor

Tetsuzo Ukai

Inventor
Aichi, JP

Overview

6→
Patents
1994–2015
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 6 as inventor

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

F04Cprimary
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids75%
F01CRotary-piston or oscillating-piston machines or engines25%
PatentTitleYear
9,145,770'Scroll compressor with stepped spiral wraps'20158,714,950'Scroll compressor having tip seals of different lengths having different thickness or widths'20147,344,365'Scroll compressor with bypass holes communicating with an intake chamber'20085,765,999'Scroll type fluid machine having spiral wraps formed in a step-like shape'19985,727,934'Scroll type fluid machine having a thin plate for each scroll'19985,316,454'Fluid pump and rotary machine having said fluid pump'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2015Patents assigned to MITSUBISHI HEAVY IND LTD (6)· patent assignee history
1994–2015Based in Aichi, JP· patent location history
1998Based in Nishikasugai-gun, JP· patent location history
2014–2015Patents assigned to UKAI TETSUZO (2)· patent assignee history
2014Patents assigned to FUJITA KATSUHIRO (1)· patent assignee history
2014Patents assigned to HIOKI NORIO (1)· patent assignee history
2015Patents assigned to HIRATA HIROHUMI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI HEAVY IND LTD61994–2015
UKAI TETSUZOself22014–2015
FUJITA KATSUHIRO12014
HIOKI NORIO12014
HIRATA HIROHUMI12015
Locations
LocationPatentsSpan
Aichi, JP41994–2015
Nishikasugai-gun, JP21998