Location History:
- Aichi, JP (1987)
- Wakayama, JP (1986 - 1989)
- Kobe, JP (2009 - 2010)
- Hyogo, JP (1985 - 2012)
- Tokyo, JP (1994 - 2023)
Company Filing History:
33 out of 21,351 
10 out of 83 
7 out of 43 
Years Active: 1985-2025
Areas of Expertise:
Title: Masahiro Sugihara: Innovator in Water-Based Ink Technologies
Introduction
Masahiro Sugihara is a prominent inventor based in Wakayama, Japan, known for his contributions to ink technologies. With a remarkable portfolio of 48 patents, Sugihara has significantly influenced the field of water-based inks, which play a crucial role in modern printing methods.
Latest Patents
Among his latest innovations are two notable patents. The first patent describes a water-based ink for inkjet applications, containing a pigment, a fixing resin, an organic solvent, and water. This ink features a unique A-B block polymer where the A block includes a structural unit with an anionic functional group, and the acid value of this polymer ranges from 5 to 80 mgKOH/g. The second patent is for a pretreatment liquid used in conjunction with aqueous inkjet inks. This liquid comprises resin microparticles, a surfactant containing polyoxyalkylene alkyl ether, and a coagulant that includes a polyvalent metal salt and/or a cationic polymer compound. This formulation enhances the performance of the ink by improving its interaction with substrates.
Career Highlights
Masahiro Sugihara has had a successful career, working for notable companies in the industry. He has been associated with Mitsubishi Electric Corporation and Toyo Ink SC Holdings Co., Ltd., where his research and innovations have garnered significant attention and praise within the field.
Collaborations
Throughout his career, Sugihara has collaborated with esteemed colleagues such as Tsutomu Inaba and Toshiyuki Nakamura. These partnerships have contributed to the advancement of technology in the inkjet printing domain, fostering an environment of innovation and creativity.
Conclusion
Masahiro Sugihara's dedication to the development of water-based ink technologies has made him a key figure in the industry. Through his extensive patent portfolio and collaborative efforts, Sugihara continues to push the boundaries of innovation, shaping the future of printing technologies.