Inventor
Hitoshi Komatsubara
Inventor
Tokyo, JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Mprimary
C10MLubricating compositions46%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions46%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
10,443,016Lubricating oil composition for gear oil201910,227,541Lubricating oil composition for transmissions20199,567,546'Lubricating oil composition'20179,540,587'Lubricating oil composition for transmissions'20179,382,499'Lubricating oil composition'20169,376,646'Lubricating oil composition'20169,340,747'Lubricating oil composition for transmissions'20169,253,370'Normalization method for a value of an equivalent lightness and a value of a degree of vividness of an arbitrary color, tone type identification method, munsell value calculating method, image formation method and interface screen display device'20169,120,992'Gear oil composition'20159,012,380'Lubricant base oil, lubricant composition for internal combustion engine and lubricant composition for driving force transmitting device'20158,921,287'Lubricating oil composition'20148,450,253'Lubricating oil composition'20138,030,255'Lubricating oil composition'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2015Patents assigned to NIPPON OIL CORP (3)· patent assignee history
2011–2015Based in Yokohama, JP· patent location history
2013–2019Patents assigned to JX NIPPON OIL & ENERGY CORP (8)· patent assignee history
2013–2016Patents assigned to KOMATSUBARA HITOSHI (5)· patent assignee history
2014–2015Patents assigned to MATSUI SHIGEKI (2)· patent assignee history
2014–2015Patents assigned to TAKAHASHI MASATO (2)· patent assignee history
2015–2019Based in Tokyo, JP· patent location history
2016Based in Saitama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| JX NIPPON OIL & ENERGY CORP | 8 | 2013–2019 |
| KOMATSUBARA HITOSHIself | 5 | 2013–2016 |
| NIPPON OIL CORP | 3 | 2011–2015 |
| MATSUI SHIGEKI | 2 | 2014–2015 |
| TAKAHASHI MASATO | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 2015–2019 |
| Yokohama, JP | 4 | 2011–2015 |
| Saitama, JP | 1 | 2016 |