Inventor

Keiichi Sanpei

Inventor
Izumiotsu, JP

Overview

6→
Patents
1985–2003
Patent span
Human necessities
Primary field (CPC A)

Patents· 6 as inventor

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

A01Bprimary
A01BSoil working in agriculture or forestry33%
A47JKitchen equipment33%
A01DHarvesting17%
F16HGearing17%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1989Patents assigned to KUBOTA LTD (4)· patent assignee history
1985Based in Izumiohtsu, JP· patent location history
1985Based in Sakai, JP· patent location history
1987–1989Based in Osaka, JP· patent location history
2002–2003Patents assigned to KUBOTA KK (2)· patent assignee history
2002–2003Based in Izumiotsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KUBOTA LTD41985–1989
KUBOTA KK22002–2003
Locations
LocationPatentsSpan
Izumiotsu, JP22002–2003
Osaka, JP21987–1989
Izumiohtsu, JP11985
Sakai, JP11985