Inventor

Keijiro Shigeru

Inventor
Funabashi, JP

Overview

8→
Patents
1991–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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

C03Cprimary
C03CChemical composition of glasses, glazes or vitreous enamels18%
C23CCoating metallic material18%
A01NPreservation of bodies of humans or animals or plants or parts thereof14%
Y10TTechnical subjects covered by former us classification14%
A47JKitchen equipment5%
A47LDomestic washing or cleaning5%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%
C04BLime, magnesia5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
F24CDomestic stoves or ranges5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2013Based in Funabashi, JP· patent location history
1998–2019Patents assigned to SUMITOMO OSAKA CEMENT CO LTD (7)· patent assignee history
2001Patents assigned to KAWASAKI STEEL CO (1)· patent assignee history
2013–2014Patents assigned to MAEDA DAISAKU (2)· patent assignee history
2013–2014Patents assigned to SHIGERU KEIJIRO (2)· patent assignee history
2014Patents assigned to MARUYAMA TAISHI (1)· patent assignee history
2014Based in Chiyoda-ku, JP· patent location history
2019Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO OSAKA CEMENT CO LTD71998–2019
MAEDA DAISAKU22013–2014
SHIGERU KEIJIROself22013–2014
KAWASAKI STEEL CO12001
MARUYAMA TAISHI12014
Locations
LocationPatentsSpan
Funabashi, JP61991–2013
Tokyo, JP12019
Chiyoda-ku, JP12014