Inventor
Tamotsu Nakamura
Inventor
Saitama, JP
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B63Hprimary
B63HMarine propulsion or steering50%
F15BSystems acting by means of fluids in general12%
B01DSeparation6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
F02BInternal-combustion piston engines6%
F16FSprings6%
Y02TClimate change mitigation technologies related to transportation6%
C10MLubricating compositions3%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions3%
LOC153%
PatentTitleYear
D0474202'Tilt device for marine propulsion unit'20036,390,868'Tilt device for marine propulsion unit'20026,390,867'Tilt device for marine propulsion unit'20026,332,817'Trim-tilt device for marine propulsion unit'20016,328,616'Trim-tilt device for a marine propulsion unit'20016,293,837'Trim-tilt device for marine propulsion unit'20016,213,823'Trim-tilt device for marine propulsion unit'20016,165,032'Tilt cylinder device for outboard motor'20006,123,590'Tilt lock device for outboard motor'20006,062,924'Tilt lock device for outboard motor'20006,042,435'Tilt-trim device for marine propulsion device'20006,039,617'Tilt cylinder device for outboard motor'20005,975,968'Trim-tilt device for marine propulsion unit'19995,882,235'Power tilt cylinder device'19995,876,259'Tilt cylinder apparatus for boat propeller unit'19995,802,953'Power tilt cylinder device'19985,720,637'Power tilt cylinder device'19985,141,659'Lubricating agent for use in warm and hot forging'19924,367,162'Catalyst for purifying exhaust gases and a method for producing the catalyst'19834,316,822'Catalyst for purifying exhaust gases'19824,308,018'Trim-tilt device for marine propulsion devices'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981Patents assigned to SHOWA MFG (1)· patent assignee history
1981Based in Iwata, JP· patent location history
1982–1983Patents assigned to TOYODA CHUO KENKYUSHO KK (2)· patent assignee history
1982–1983Based in Nagoya, JP· patent location history
1992Patents assigned to SUMIKO JUNKATSUZAI KK (1)· patent assignee history
1992Based in Hamamatsu, JP· patent location history
1998–2003Patents assigned to SHOWA CORP (17)· patent assignee history
1998–2003Based in Saitama, JP· patent location history
2001Based in Gyoda, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHOWA CORP | 17 | 1998–2003 |
| TOYODA CHUO KENKYUSHO KK | 2 | 1982–1983 |
| SHOWA MFG | 1 | 1981 |
| SUMIKO JUNKATSUZAI KK | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Saitama, JP | 15 | 1998–2003 |
| Gyoda, JP | 2 | 2001 |
| Nagoya, JP | 2 | 1982–1983 |
| Hamamatsu, JP | 1 | 1992 |
| Iwata, JP | 1 | 1981 |