Liquid ejection head
US-12434484-B2 · Oct 7, 2025 · US
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Tsukuda Keiichiro patents
Tsukuda Keiichiro is listed as an inventor on 38 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Tsukuda Keiichiro |
| Total patents | 38 |
| First publication | May 4, 2017 |
| Latest publication | Oct 7, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Liquid refill container for refilling liquid discharge apparatus with liquid, and reuse system using liquid refill container
US-2025250077-A1 · Aug 7, 2025 · US
Printing apparatus and liquid storage member
US-RE50482-E · Jul 8, 2025 · US
Liquid refill container for refilling liquid discharge apparatus with liquid, and reuse system using liquid refill container
US-12297013-B2 · May 13, 2025 · US
Cartridge and liquid ejection apparatus
US-2025065638-A1 · Feb 27, 2025 · US
Liquid ejection head and liquid ejection apparatus
US-2024300236-A1 · Sep 12, 2024 · US
Liquid ejection head
US-2023373221-A1 · Nov 23, 2023 · US
Liquid refill container for refilling liquid discharge apparatus with liquid, and reuse system using liquid refill container
US-2023322449-A1 · Oct 12, 2023 · US
Piezoelectric pump, liquid discharge head, and liquid discharge apparatus
US-2023286273-A1 · Sep 14, 2023 · US
Liquid refill container for refilling liquid discharge apparatus with liquid, and reuse system using liquid refill container
US-11708197-B2 · Jul 25, 2023 · US
Recent patents
Latest publications not already listed above.
Printing apparatus and liquid storage member
US-RE49336-E · Dec 20, 2022 · US
Liquid ejection head and manufacturing method of liquid ejection head
US-11458732-B2 · Oct 4, 2022 · US
Liquid storage device and liquid filling method
US-11433677-B2 · Sep 6, 2022 · US
Liquid refill container for refilling liquid discharge apparatus with liquid, and reuse system using liquid refill container
US-2022267059-A1 · Aug 25, 2022 · US
Liquid ejection apparatus and liquid filling method
US-11192381-B2 · Dec 7, 2021 · US
Liquid ejection head and manufacturing method of liquid ejection head
US-2021197566-A1 · Jul 1, 2021 · US
Liquid storage device and liquid filling method
US-2021162766-A1 · Jun 3, 2021 · US
Manufacturing method of liquid supply component
US-11014361-B2 · May 25, 2021 · US
Liquid ejection apparatus and liquid filling method
US-2020290362-A1 · Sep 17, 2020 · US
Liquid supply part, liquid ejection head, and method of manufacturing liquid supply part
US-10647127-B2 · May 12, 2020 · US
Nozzle cap for ink bottle for printer
US-D869550-S · Dec 10, 2019 · US
Manufacturing method and manufacturing apparatus of liquid supply component, and liquid ejection head
US-2019255853-A1 · Aug 22, 2019 · US
Liquid supply part, liquid ejection head, and method of manufacturing liquid supply part
US-2019240984-A1 · Aug 8, 2019 · US
Printing apparatus and liquid storage member
US-10118396-B2 · Nov 6, 2018 · US
Ink cartridge for printer
US-D831739-S · Oct 23, 2018 · US
Liquid ejecting device and head
US-9981477-B2 · May 29, 2018 · US
Liquid ejecting device and head with flexible member for supplying liquid from a main tank
US-9981478-B2 · May 29, 2018 · US
Liquid ejecting device, head, and liquid filling method
US-9962945-B2 · May 8, 2018 · US
Ink bottle for printer
US-D816158-S · Apr 24, 2018 · US
Liquid storage container
US-9931855-B2 · Apr 3, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Canon Kk | 38 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B41J2/175 | 30 |
| B41J2/17509 | 21 |
| B41J2/17523 | 19 |
| B41J2/17513 | 18 |
| B41J2/17553 | 18 |