Location History:
- Tokyo, JP (2010)
- Chiba, JP (2010 - 2011)
Company Filing History:
Years Active: 2010-2011
Title: Ken Umehara: Innovator in Electrostatic Toner Technology
Introduction
Ken Umehara, a prominent inventor based in Chiba, Japan, has made significant contributions to the field of imaging technology with his innovative patents. With three patents to his name, Umehara's work primarily focuses on the development of electrostatic image developing toners and related technologies that enhance imaging quality and efficiency.
Latest Patents
Umehara's latest patents include his groundbreaking work on an electrostatic image developing toner, a toner kit, and an image forming apparatus. These inventions introduce a toner composed of a colorant and a binder resin, where the binder resin includes a specially prepared polyester resin. This polyester resin is created through a polycondensation reaction utilizing a titanium-containing catalyst. The toner features a volume average particle diameter ranging from 2.0 µm to 10.0 µm and maintains a specified ratio within a range of 1.00 to 1.40, indicating its advanced structural properties.
The electrostatic image developing toner exhibits superior blocking resistance at high temperatures and humidity, in addition to excellent low-temperature fixing properties. By incorporating both noncrystalline and crystalline polyester resins, Umehara has significantly enhanced the performance and reliability of imaging systems.
Career Highlights
Ken Umehara is currently affiliated with Ricoh Company, Ltd., a leading player in imaging and electronics. His career at Ricoh has been marked by an unwavering commitment to research and development, resulting in noteworthy advancements in toner technology that cater to evolving market demands.
Collaborations
Throughout his career, Umehara has collaborated with talented individuals such as Masami Tomita and Hideki Sugiura. These collaborations have facilitated the exchange of ideas and fostered innovations that contribute to the advancement of imaging technologies.
Conclusion
Ken Umehara's contributions to the field of electrostatic image developing toners through his innovative patents exemplify the important role of inventors in advancing technology. As his work continues to influence the imaging industry, his inventions pave the way for enhanced performance and functionality in printing and imaging applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.