Location History:
- Touma, JP (2000)
- Shizuoka-ken, JP (1999 - 2005)
- Numazu, JP (1988 - 2011)
- Shizouka, JP (2015)
- Shizuoka, JP (2000 - 2019)
Company Filing History:
39 out of 28,577 
1 out of 832,880 Years Active: 1988-2019
Title: The Innovative Journey of Hiroyuki Fushimi: Pioneering Patents in Ink Technology
Introduction: Hiroyuki Fushimi, based in Shizuoka, Japan, stands out as a prolific inventor with an impressive portfolio of 39 patents. His contributions to the field of ink technology have significantly influenced various industries, especially in printing and imaging solutions.
Latest Patents: Fushimi's recent patents focus on advanced ink formulations and inkjet recording devices. One notable invention involves a unique ink that comprises water, a pigment, an organic solvent featuring glycol ether, and a silicone-based surfactant, accompanied by a salt of sulfo succinic acid dialkyl ester. This innovative ink is characterized by its dynamic surface tension: measured at 23 degrees Celsius, the dynamic surface tension at 15 milliseconds does not exceed 31 mN/m, and the difference between the dynamic surface tension at 15 milliseconds and at 1,500 milliseconds is capped at 4.0 mN/m.
Additionally, his patents include an inkjet recording ink set that integrates cyan, magenta, yellow, and black inks. Each ink formulation consists of pigments, surfactants, water, and a water-soluble organic solvent, alongside anionic self-emulsifying ether-based polyurethane. The inks utilize a combination of pigment dispersion and resinous polymer-coated pigment dispersion, carefully designed to meet specific particle size requirements to enhance print quality.
Career Highlights: Throughout his career, Hiroyuki Fushimi has worked for reputable companies, including Ricoh Company, Ltd. His expertise has driven significant advancements in inkjet technology, contributing to the development of high-quality printing solutions.
Collaborations: Fushimi has collaborated with esteemed colleagues, such as Shin Hasegawa and Yasuo Asahina. Together, they have worked on various projects that continue to push the boundaries of ink formulation and delivery systems.
Conclusion: Hiroyuki Fushimi's inventive spirit and dedication to enhancing ink technology have led to breakthrough patents that demonstrate his impact on the industry. His innovations not only reflect a commitment to quality but also signify a future where printing technology can achieve greater precision and efficiency.