Inventor
Souji Sakata
Inventor
Kasai, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Lprimary
A47LDomestic washing or cleaning33%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1033%
A44BButtons, pins, buckles, slide fasteners, or the like17%
F01DNon-positive displacement machines or engines, e.g. steam turbines17%
PatentTitleYear
6,539,577'Vacuum cleaner suction tool with partition defining air current dust pickup path'2003RE037690'Lead frame and semiconductor device'20026,192,550'Dust-collecting device for vacuum cleaner and upright type vacuum cleaner'20014,942,452'Lead frame and semiconductor device'19904,618,311'Vane angle changing device for an axial fluid machine'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2002Patents assigned to HITACHI LTD (3)· patent assignee history
1986–1990Based in Ibaraki, JP· patent location history
2001–2003Patents assigned to SANYO ELECTRIC CO (2)· patent assignee history
2001–2003Based in Kasai, JP· patent location history
2002Based in Yawara-mura, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 3 | 1986–2002 |
| SANYO ELECTRIC CO | 2 | 2001–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kasai, JP | 2 | 2001–2003 |
| Ibaraki, JP | 2 | 1986–1990 |
| Yawara-mura, JP | 1 | 2002 |