Display device
US-12471368-B2 · Nov 11, 2025 · US
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Hayashi Takao patents
Hayashi Takao is listed as an inventor on 28 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hayashi Takao |
| Total patents | 28 |
| First publication | Oct 22, 2015 |
| Latest publication | Nov 11, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Display device
US-2025311424-A1 · Oct 2, 2025 · US
Water electrolysis electrode, water electrolysis cell, water electrolysis device, and method for manufacturing water electrolysis electrode
US-2025243592-A1 · Jul 31, 2025 · US
Electrode for water electrolysis cell, water electrolysis cell, water electrolysis device, and method for manufacturing electrode for water electrolysis cell
US-2025207274-A1 · Jun 26, 2025 · US
Water electrolysis electrode, water electrolysis anode, water electrolysis cathode, water electrolysis cell, water electrolysis device, and method for manufacturing water electrolysis electrode
US-2025207273-A1 · Jun 26, 2025 · US
Display device
US-2024407213-A1 · Dec 5, 2024 · US
Method for operating water electrolyzer and water electrolyzer
US-2024309527-A1 · Sep 19, 2024 · US
Water electrolyzer and method for controlling the same
US-2024060198-A1 · Feb 22, 2024 · US
Water electrolysis cell and water electrolyzer
US-2024052505-A1 · Feb 15, 2024 · US
Water electrolyzer and method for controlling the same
US-2024044028-A1 · Feb 8, 2024 · US
Recent patents
Latest publications not already listed above.
Electrode catalyst ink of water electrolysis cell, electrode catalyst, water electrolysis cell, and water electrolyzer
US-2023235467-A1 · Jul 27, 2023 · US
Electrode catalyst ink, electrode catalyst, water electrolysis cell, and water electrolyzer
US-2023227989-A1 · Jul 20, 2023 · US
Electrode catalyst for water electrolysis cell, water electrolysis cell and water electrolyzer
US-2023220571-A1 · Jul 13, 2023 · US
Electrode catalyst for water electrolysis cell, water electrolysis cells, and water electrolysis devices
US-2023160082-A1 · May 25, 2023 · US
Electrode catalyst for water electrolysis cell, water electrolysis cells, and water electrolysis devices
US-2023143685-A1 · May 11, 2023 · US
Catalyst, catalyst for water electrolysis cell, water electrolysis cell, water electrolysis device, and method for producing catalyst
US-2023121007-A1 · Apr 20, 2023 · US
Fuel cell system
US-11316184-B2 · Apr 26, 2022 · US
Fuel cell system
US-11211622-B2 · Dec 28, 2021 · US
Layered double hydroxide, catalyst for water electrolysis cell, water electrolysis cell, water electrolyzer, and method for manufacturing layered double hydroxide
US-2021346879-A1 · Nov 11, 2021 · US
Fuel cell system
US-11165079-B2 · Nov 2, 2021 · US
Fuel cell system
US-2019379077-A1 · Dec 12, 2019 · US
Fuel cell system
US-2019379072-A1 · Dec 12, 2019 · US
Fuel cell system
US-2019379073-A1 · Dec 12, 2019 · US
Fuel cell system
US-2019356009-A1 · Nov 21, 2019 · US
Carbon-based material, electrode catalyst, electrode, gas diffusion electrode, electrochemical device, fuel battery, and process for producing carbon-based material
US-9929411-B2 · Mar 27, 2018 · US
Carbon-based material, electrode catalyst, electrode, electrochemical device, fuel cell, and method for manufacturing carbon-based material
US-2017149070-A1 · May 25, 2017 · US
Transportation vehicle system and charging method for the transportation vehicle system
US-9430950-B2 · Aug 30, 2016 · US
Carbon-based material, electrode catalyst, electrode, gas diffusion electrode, electrochemical device, fuel battery, and process for producing carbon-based material
US-2015303487-A1 · Oct 22, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Panasonic Ip Man Co Ltd | 23 |
| Sharp Display Technology Corp | 3 |
| Panasonic Corp | 1 |
| Murata Machinery Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C25B1/04 | 14 |
| Y02E60/36 | 14 |
| Y02E60/50 | 10 |
| C25B11/061 | 10 |
| C25B11/075 | 9 |