Inventor

Keizo Takegami

Inventor

Tokyo, JP

Overview

1983–2012

Patent span

Performing operations

Primary field (CPC B)

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

B01Dprimary

B01DSeparation29%

C07CAcyclic or carbocyclic compounds18%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry12%

F23JRemoval or treatment of combustion products or combustion residues12%

Y10TTechnical subjects covered by former us classification12%

C02FTreatment of water, waste water, sewage, or sludge6%

C07BGeneral methods of organic chemistry6%

F26BDrying solid materials or objects by removing liquid therefrom6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1983–2012Patents assigned to TSUKISHIMA KIKAI CO (7)· patent assignee history

1983Based in Kamakura, JP· patent location history

1986Based in Kanagawa, JP· patent location history

1995–2012Based in Tokyo, JP· patent location history

2011–2012Based in Chuo-ku, JP· patent location history

2012Patents assigned to TAKEGAMI KEIZO (2)· patent assignee history

2012Patents assigned to CENTRAL RES INST ELECT (1)· patent assignee history

2012Patents assigned to ISHII KIWAMU (1)· patent assignee history

2012Patents assigned to KANDA HIDEKI (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations