Location History:
- Kiyosu, JP (2015)
- Kakamigahara, JP (2013 - 2016)
Company Filing History:
Years Active: 2013-2016
Title: Kazuya Sumita: Innovator in Polishing Technologies
Introduction
Kazuya Sumita is a distinguished inventor based in Kakamigahara, Japan. With three patents to his name, Kazuya has made significant contributions to the field of polishing compositions and methods, showcasing his expertise and innovation in this technical domain.
Latest Patents
One of Kazuya Sumita's latest patents pertains to a polishing composition and polishing method utilizing the same. This invention provides a tailored polishing composition that is particularly effective for polishing polysilicon. The formulation includes a nitrogen-containing nonionic surfactant and abrasive grains with a specific pH range of 9 to 12. The recommended concentration of the nitrogen-containing nonionic surfactant is between 20 to 500 ppm, while colloidal silica is used as the preferred abrasive grain. Kazuya's innovative composition optimally contains abrasive grains in the range of 1.0 to 5.0% by mass, with an average primary particle diameter of 10 to 90 nm.
Kazuya's other significant patent covers another polishing composition that includes a water-soluble polymer, a polishing accelerator, and an oxidizing agent. This particular water-soluble polymer is a polyamide-polyamine polymer with an amine value of 150 mg KOH/1 g·solid or greater, highlighting his commitment to creating highly effective polishing solutions.
Career Highlights
Kazuya Sumita's career is marked by his association with Fujimi Incorporated, a company known for its high-quality semiconductor materials and chemical solutions. His work at Fujimi has been instrumental in the development of advanced polishing techniques and compositions used across various industries.
Collaborations
Kazuya frequently collaborates with talented individuals in his field. Notable coworkers include Mikikazu Shimizu and Tomohiko Akatsuka, both of whom contribute to the innovative environment at Fujimi Incorporated. This teamwork fosters creativity and the exchange of ideas, enhancing the quality and effectiveness of their inventions.
Conclusion
Kazuya Sumita stands out as a notable inventor in the polishing technology sector. His patent contributions not only demonstrate his expertise and innovative spirit but also significantly impact the industry. Through his work at Fujimi Incorporated and collaborations with esteemed colleagues, Kazuya continues to pave the way for advancements in polishing applications.