Fuel cell ship
US-12583570-B2 · Mar 24, 2026 · US
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Maruyama Takehiro patents
Maruyama Takehiro is listed as an inventor on 33 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Maruyama Takehiro |
| Total patents | 33 |
| First publication | Sep 24, 2015 |
| Latest publication | Mar 24, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Coreless current sensor module, current sensor module, and power module
US-2026050013-A1 · Feb 19, 2026 · US
Fuel cell ship
US-12552271-B2 · Feb 17, 2026 · US
Fuel cell ship
US-12502967-B2 · Dec 23, 2025 · US
Fuel cell ship
US-2025372670-A1 · Dec 4, 2025 · US
Fuel cell ship
US-2025364580-A1 · Nov 27, 2025 · US
Fuel cell system
US-2025309299-A1 · Oct 2, 2025 · US
Fuel cell ship
US-12428118-B2 · Sep 30, 2025 · US
Fuel cell ship
US-12407005-B2 · Sep 2, 2025 · US
Fuel cell ship
US-12401050-B2 · Aug 26, 2025 · US
Recent patents
Latest publications not already listed above.
Fuel cell ship
US-12394810-B2 · Aug 19, 2025 · US
Fuel cell ship
US-12394809-B2 · Aug 19, 2025 · US
Current measurement module
US-2025147074-A1 · May 8, 2025 · US
Current measurement module and current measurement device
US-2025138055-A1 · May 1, 2025 · US
Fuel Cell System
US-2025038226-A1 · Jan 30, 2025 · US
Current detection device
US-2025020699-A1 · Jan 16, 2025 · US
Fuel Cell System
US-2025015325-A1 · Jan 9, 2025 · US
Fuel Cell System And Fuel Cell System Installation Section
US-2024304845-A1 · Sep 12, 2024 · US
Fuel Cell System
US-2024304843-A1 · Sep 12, 2024 · US
Fuel cell ship
US-2022388618-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022393196-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022393201-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022393195-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022393208-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022388620-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022393202-A1 · Dec 8, 2022 · US
Fuel cell ship
US-2022393198-A1 · Dec 8, 2022 · US
Method for operating fuel cell system and method for estimating composition of fuel used in fuel cell system
US-10050293-B2 · Aug 14, 2018 · US
Fuel cell system
US-9871264-B2 · Jan 16, 2018 · US
Fuel cell system
US-9515329-B2 · Dec 6, 2016 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Yanmar Holdings Co Ltd | 23 |
| Panasonic Ip Man Co Ltd | 6 |
| Asahi Kasei Microdevices Corp | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| Y02E60/50 | 27 |
| H01M2250/20 | 23 |
| H01M8/04201 | 23 |
| B63H2021/003 | 20 |
| B63H21/17 | 18 |