Takahiro Ishihara

Title: Takahiro Ishihara: Innovator in Color Toner Technology

Introduction

Takahiro Ishihara is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of color toner technology, holding a total of 3 patents. His innovative work has advanced the capabilities and applications of color toners in various industries.

Latest Patents

Ishihara's latest patents include a positive charging color toner that comprises a coloring agent and a positive charging electric charge controlling material in a fixing resin. The fixing resin is an urethane-modified polyester resin with specific chemical properties, including an acid value of not more than 5 KOHmg/g and a hydroxyl value of not more than 9 KOHmg/g. Additionally, the positive charging electric charge controlling material can be a quaternary ammonium salt with a melting point of not less than 200°C or a styrene-acrylate copolymer with a trisubstituted amminio group. His work also includes a positive charging one-component non-magnetic color toner that features a polyester resin and a polyolefine releasing agent, among other components.

Career Highlights

Ishihara is currently employed at Mita Industrial Co., Ltd., where he continues to develop innovative solutions in the field of color toners. His expertise and dedication to research have positioned him as a key figure in the industry.

Collaborations

Throughout his career, Ishihara has collaborated with notable colleagues, including Yoshitake Shimizu and Hiroshi Shimoyama. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Takahiro Ishihara's contributions to color toner technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of material science and engineering, making him a valuable asset to the field.