Inventor
HIROKI ISHIHARA
Inventor
JP
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Jprimary
H02JElectric power networks20%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution15%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems12%
B41JTypewriters10%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables10%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy7%
G01RMeasuring electric variables5%
G03GElectrography5%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids5%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%
PatentTitleYear
12,549,110Power conversion device simulating a synchronous generator202612,459,767Open and close device, sheet conveyor, and image forming apparatus202512,319,511Device for attaching and detaching roller, and belt conveyor including the device202512,272,954Power storage system and grid control system202512,266,935Power conversion device202512,083,789Attachment mechanism, apparatus including attachment mechanism, belt device, conveyance device, cooling device, and printing apparatus202411,973,347Storage battery system and method for suppressing fluctuation in frequency of AC power system202411,817,708Power conversion system and management apparatus for the same, and distributed power supply apparatus202311,472,210Cooling device and image forming apparatus202211,422,190Storage battery system charging control device, storage battery system, and storage battery charging control method202211,360,414Sheet correcting device and printer202211,309,807Power conversion system and power conversion device202211,146,080Power supply device2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2026Patents assigned to MITSUBISHI ELECTRIC CORP (8)· patent assignee history
2021–2026Based in JP· patent location history
2022–2025Patents assigned to RICOH CO LTD (5)· patent assignee history
2024–2025Patents assigned to ISHIHARA HIROKI (3)· patent assignee history
2024–2025Patents assigned to NAKAMURA TAKEHIRO (3)· patent assignee history
2024–2025Patents assigned to NOZAWA KENJI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 8 | 2021–2026 |
| RICOH CO LTD | 5 | 2022–2025 |
| ISHIHARA HIROKIself | 3 | 2024–2025 |
| NAKAMURA TAKEHIRO | 3 | 2024–2025 |
| NOZAWA KENJI | 3 | 2024–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 13 | 2021–2026 |