Inventor
Kenichi Ichikawa
Inventor
Iwata, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Cprimary
F16CShafts11%
Y10TTechnical subjects covered by former us classification8%
B41JTypewriters6%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for6%
C23CCoating metallic material6%
F01LCyclically operating valves for machines or engines6%
F16DCouplings for transmitting rotation6%
F16HGearing6%
G06FElectric digital data processing6%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material3%
PatentTitleYear
11,124,139Vehicle conversation information output device and conversation information output method202111,106,426Vehicle conversation information output device and conversation information output method202111,077,581Sheet manufacturing apparatus and control method of sheet manufacturing apparatus202110,414,685Substrate processing method20197,665,899'Outer ring, drawn cup needle roller bearing, drawn cup needle roller bearing structured body, piston pin supporting structure of engine, crankshaft supporting structure of engine, and 2-cycle engine'20107,603,929'Rolling bearing, cam-follower with roller, and cam'20097,571,706'Needle roller bearing and its manufacturing method'20097,490,583'Full-type rolling bearing and roller cam follower for engine'20095,664,653'Rotary unit having clutch function'19975,271,486'Torque limiter'19935,270,740'Ink jet head'19934,524,365'Receptacle for waste ink collection in ink jet recording apparatus'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1993Patents assigned to RICOH KK (2)· patent assignee history
1993–2010Patents assigned to NTN TOYO BEARING CO LTD (6)· patent assignee history
1993–1997Based in Kuwana, JP· patent location history
2009–2010Based in Iwata, JP· patent location history
2019Patents assigned to VIA MECHANICS LTD (1)· patent assignee history
2021Patents assigned to KAWASAKI HEAVY IND LTD (2)· patent assignee history
2021Patents assigned to SEIKO EPSON CORP (1)· patent assignee history
2021Based in Kobe, JP· patent location history
2021Based in Akashi, JP· patent location history
2021Based in Nagano-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NTN TOYO BEARING CO LTD | 6 | 1993–2010 |
| KAWASAKI HEAVY IND LTD | 2 | 2021 |
| RICOH KK | 2 | 1985–1993 |
| SEIKO EPSON CORP | 1 | 2021 |
| VIA MECHANICS LTD | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Iwata, JP | 4 | 2009–2010 |
| Kuwana, JP | 2 | 1993–1997 |
| Kobe, JP | 1 | 2021 |
| Akashi, JP | 1 | 2021 |
| Nagano-shi, JP | 1 | 2021 |