CIPO Patents = 1

Forward Citations = 1

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6 inventors (with patents filed for the assignee):

Toshio Takagi (3 out of 11 patents)

Katsumi Kaneko (2 out of 8 patents)

Katsuyuki Murata (2 out of 7 patents)

4. Jutaro Takagi (1 out of 2 patents)

5. Fernando Vallejos-Burgos (1 out of 1 patent)

6. Yuji Ono (1 out of 1 patent)

7. Yasushi Shimizu (0 patent)

3 patents: Sort by Forward Citations

1. 11401175 - Water-purification cartridge and water purifier (2022-08-02),

2. 11278849 - Graphene nanowindow structure and method for producing highly pure gas (2022-03-22),

3. 11213790 - Method for producing deuterium-depleted water and method for producing deuterium-enriched water (2022-01-04),

Kotobuki Holdings Co., Ltd. is a Japan-based holding company with a diverse portfolio of businesses in the real estate, construction, and energy sectors. With a focus on sustainable development and community impact, Kotobuki Holdings is committed to providing innovative solutions and high-quality services to its clients and partners.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#15 in Kitakyushu

#8,766 in Japan

Kitakyushu, Japan

Kotobuki Holdings Co., Ltd.