Rolling bearing, pivot assembly bearing, and disk drive apparatus
US-12534681-B2 · Jan 27, 2026 · US
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Tsuna Motojiro patents
Tsuna Motojiro is listed as an inventor on 14 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Tsuna Motojiro |
| Total patents | 14 |
| First publication | Jan 29, 2015 |
| Latest publication | Jan 27, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Grease composition, pivot assembly bearing, and bearing apparatus including the bearing
US-12534680-B2 · Jan 27, 2026 · US
Fluid dynamic pressure bearing oil, spindle motor, and disk drive device
US-2025237263-A1 · Jul 24, 2025 · US
Grease composition, pivot assembly bearing, and bearing apparatus including the bearing
US-2025011672-A1 · Jan 9, 2025 · US
Rolling bearing, pivot assembly bearing, and disk drive apparatus
US-2024417645-A1 · Dec 19, 2024 · US
Grease composition for metal-resin lubrication
US-11555161-B2 · Jan 17, 2023 · US
Grease composition for metal-resin lubrication
US-2022306963-A1 · Sep 29, 2022 · US
Grease composition for resin lubrication and sliding member having sliding surface made of resin
US-11174450-B2 · Nov 16, 2021 · US
Grease composition for resin lubrication and sliding member having sliding surface made of resin
US-2020032157-A1 · Jan 30, 2020 · US
Grease composition-filled ball bearing, pivot assembly bearing including the ball bearing, and hard disk drive including the pivot assembly bearing
US-10145417-B2 · Dec 4, 2018 · US
Recent patents
Latest publications not already listed above.
Grease composition and rolling bearing
US-2018291300-A1 · Oct 11, 2018 · US
Grease composition-filled ball bearing, pivot assembly bearing including the ball bearing, and hard disk drive including the pivot assembly bearing
US-2018003233-A1 · Jan 4, 2018 · US
Gel lubricant, rolling bearing, pivot assembly bearing, and hard disk drive
US-9541135-B2 · Jan 10, 2017 · US
Gel lubricant, rolling bearing, pivot assembly bearing, and hard disk drive
US-2015030275-A1 · Jan 29, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Minebea Mitsumi Inc | 12 |
| Minebea Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C10N2050/10 | 13 |
| C10N2020/02 | 13 |
| C10M2205/0285 | 12 |
| C10N2040/02 | 10 |
| C10M2223/041 | 10 |