Location History:
- Yamatokoriyama, JP (1996 - 1999)
- Nara, JP (2004 - 2009)
- Osaka, JP (2016)
- Sakai, JP (2017)
Company Filing History:
11 out of 25,530 
1 out of 832,680 Years Active: 1996-2017
Title: Tadayuki Sawai: Innovator in Toner Technology
Introduction
Tadayuki Sawai is a prominent inventor based in Nara, Japan. He has made significant contributions to the field of toner technology, holding a total of 12 patents. His innovative work has advanced the development of color developers and image formation devices.
Latest Patents
Among his latest patents is a method for producing ground toner. This toner has a weight average molecular weight Mw of 30,000 ≤ Mw ≤ 95,263, as determined from a molecular weight distribution based on GPC. It includes a THF-insoluble gel component at a weight proportion of less than 5%, and components each having a molecular weight of 500 to 1500, which have an area occupancy of 4% to 10% on a chart of the molecular weight distribution based on GPC. Another notable patent is for a two-component color developer and image formation device using the same. This developer contains a toner and a resin-coated carrier, with the toner comprising at least a polyester resin as a binding resin, an organic pigment as a colorant, and inorganic fine particles as an external additive. The inorganic fine particles possess a negative polarity, and the toner has a volume resistivity of 40 × 10 to 220 × 10 Ω·cm and a negative polarity, while the carrier boasts a coat durability of 90% or greater.
Career Highlights
Tadayuki Sawai has worked with notable companies, including Sharp Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in toner technology.
Collaborations
Throughout his career, Tadayuki has collaborated with talented individuals such as Toshihisa Ishida and Kouji Kida. These partnerships have fostered a creative environment that has led to the development of advanced technologies.
Conclusion
Tadayuki Sawai's contributions to toner technology and his impressive portfolio of patents highlight his role as a leading inventor in the field. His work continues to influence the industry and inspire future innovations.
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.