Inventor
Seizo Hayashi
Inventor
Oumihachiman, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Lprimary
A47LDomestic washing or cleaning65%
H02JElectric power networks12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
H02HEmergency protective circuit arrangements6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
PatentTitleYear
6,684,451'Vacuum cleaner'20046,437,465'Rotary brush device and vacuum cleaner using the same'20026,400,048'Rotary brush device and vacuum cleaner using the same'20026,345,411'Vacuum cleaner'20026,323,570'Rotary brush device and vacuum cleaner using the same'2001D0363163'Tool caddy for a portable appliance'19955,144,714'Vacuum cleaner'19924,977,640'Floor nozzle for vacuum cleaner'19904,746,092'Apparatus for supporting an electric blower of a vacuum cleaner'19884,716,620'Vacuum cleaner'19884,637,092'Vacuum cleaner with agitator'19874,217,674'Upright vacuum cleaner'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2004Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (11)· patent assignee history
1987–1988Based in Oumi, JP· patent location history
1990–1992Based in Omihachiman, JP· patent location history
1995Patents assigned to MATSUSHITA FLOOR CARE COMPANY (1)· patent assignee history
1995Based in Lexington, KY, US· patent location history
2001–2002Based in Oumihachiman, JP· patent location history
2002–2004Based in Shiga, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 11 | 1980–2004 |
| MATSUSHITA FLOOR CARE COMPANY | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oumihachiman, JP | 3 | 2001–2002 |
| Oumi, JP | 3 | 1987–1988 |
| Shiga, JP | 2 | 2002–2004 |
| Omihachiman, JP | 2 | 1990–1992 |
| Lexington, KY, US | 1 | 1995 |