Inventor
Yoshio Kumagae
Inventor
Tokyo, JP
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation14%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals14%
E02FDredging14%
F02DControlling combustion engines14%
F15BSystems acting by means of fluids in general14%
G05BControl or regulating systems in general14%
Y02PClimate change mitigation technologies in the production or processing of goods14%
PatentTitleYear
11,047,112Control system, work machine, and control method20218,972,222'System for identifying cause of abnormality, method of identifying cause of abnormality, and program for identifying cause of abnormality'20155,833,865'Sedimentation type solid-liquid separator'19985,545,384'Process for production of aluminum hydroxide from ore containing alumina'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1998Patents assigned to SUMITOMO CHEMICAL CO (2)· patent assignee history
1996Based in Osaka, JP· patent location history
1998Based in Yokohama, JP· patent location history
2015Patents assigned to PREFEED CORP (1)· patent assignee history
2015–2021Based in Tokyo, JP· patent location history
2021Patents assigned to KOMATSU MFG CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUMITOMO CHEMICAL CO | 2 | 1996–1998 |
| KOMATSU MFG CO LTD | 1 | 2021 |
| PREFEED CORP | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 2 | 2015–2021 |
| Yokohama, JP | 1 | 1998 |
| Osaka, JP | 1 | 1996 |