Tamotsu Aruga

USPTO Granted Patents = 77 (Patent Applications = 1)

EPO Patents = 10 (Patent Applications = 2)

Average Co-Inventor Count = 4.2

ph-index = 18

Forward Citations = 1,225(Granted Patents)

Forward Citations (Not Self Cited) = 1,115(Oct 12, 2025)

Inventors with similar research interests:

Location History:

Kamakura, JP (1985 - 1986)
Numazu, JP (1986 - 1997)
Mishima, JP (1990 - 2012)
Isehara, JP (2004 - 2013)
Kanagawa, JP (2009 - 2014)
Saitama, JP (2014)
Atsugi, JP (2012 - 2018)
Shizuoka, JP (1995 - 2019)

Company Filing History:

Hodogaya Chemical Co., Ltd.

where one patent can have more than one assignee

Years Active: 1985-2019

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77 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 10414932 - Ink, ink container, and inkjet recording device (2019-09-17),

2. 10011684 - Arylamine polymer, method for producing the same, ink composition, film, electronic device, organic thin-film transistor, and display device (2018-07-03),

3. 8998400 - Copolymer, aqueous ink, and ink cartridge (2015-04-07),

4. 8815140 - Method of producing film by inkjet process, and film (2014-08-26),

5. 8807731 - Inkjet image forming apparatus and inkjet image forming method (2014-08-19),

6. 8740374 - Ink jet recording method, ink jet recording apparatus, and ink jet recorded matter (2014-06-03),

7. 8727522 - Ultraviolet crosslinking ink and inkjet recording method (2014-05-20),

8. 8708475 - Ultraviolet crosslinking inkjet ink, ink cartridge containing same, and image forming method and apparatus using same (2014-04-29),

9. 8632174 - Ink jet recording method (2014-01-21),

10. 8556405 - Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the same (2013-10-15),

11. 8440713 - [1]benzothieno[3,2-B][1]benzothiophene compound and method for producing the same, and organic electronic device using the same (2013-05-14),

12. 8435339 - Ink set, ink cartridge, inkjet recording method, and inkjet recording apparatus (2013-05-07),

13. 8328343 - Recording ink as well as ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method (2012-12-11),

14. 8193304 - Benzobisthiazole compound, benzobisthiazole polymer, organic film including the compound or polymer and transistor including the organic film (2012-06-05),

15. 8173227 - Recording ink, ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus, and inkjet recording method (2012-05-08),

Title: The Innovation Legacy of Tamotsu Aruga

Introduction: Tamotsu Aruga, a prolific inventor hailing from Mishima, JP, has left an indelible mark on the world of innovation with his impressive portfolio of 77 patents. His groundbreaking work and unwavering commitment to advancement have positioned him as a true luminary in the realm of invention.

Latest Patents: Among his recent patents is one for Ink, ink container, and inkjet recording device. This innovative ink formulation boasts a precise combination of ingredients, including water, a pigment, and specific surfactants, designed to optimize performance in inkjet recording devices. Additionally, his patent for Arylamine polymer showcases his expertise in developing advanced materials for various applications in electronics and beyond.

Career Highlights: Throughout his career, Tamotsu Aruga has made significant contributions while working at esteemed companies such as Ricoh Company, Ltd. and Hodogaya Chemical Co., Ltd. His tenure at these organizations has been marked by a relentless pursuit of excellence and a knack for transforming novel ideas into tangible inventions that push the boundaries of technological innovation.

Collaborations: In his professional journey, Tamotsu Aruga has collaborated closely with notable peers, including Masaomi Sasaki and Tomoyuki Shimada. These collaborations have not only fostered a culture of knowledge sharing and synergistic innovation but have also led to the development of groundbreaking technologies that have had a lasting impact on various industries.

Conclusion: In conclusion, Tamotsu Aruga stands as a beacon of innovation, his inventive spirit and dedication to progress serving as an inspiration to aspiring inventors and creators globally. His impressive body of work underscores his remarkable ingenuity and unwavering commitment to pushing the boundaries of what is possible in the world of invention.

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1 patent pending:

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10 patents (EPO):

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2 patents pending (EPO):

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