Location History:
- Hitachi, JP (2014 - 2019)
- Tokyo, JP (2021)
Company Filing History:
4 out of 1,641 
1 out of 139 
Years Active: 2014-2021
Title: Kouji Mishima: Innovator in Polishing Technologies
Introduction
Kouji Mishima is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of polishing technologies, holding a total of 5 patents. His work focuses on developing advanced polishing agents and methods that enhance the efficiency and effectiveness of polishing processes.
Latest Patents
Mishima's latest patents include innovative formulations and methods. One of his patents describes a polishing agent that contains abrasive grains and water. This polishing agent features silica particles with an average particle diameter of 50 nm or more. The ratio of the average particle diameter to the average minor diameter of the abrasive grains is between 1.0 to 2.0, and the zeta potential of the abrasive grains is positive. Another significant patent involves a CMP polishing liquid designed for polishing surfaces that contain cobalt and other metals. This CMP polishing liquid includes polishing particles, a metal corrosion inhibitor, and water, with a pH of 4.0 or less. The corrosion potential difference between cobalt and the other metal in the CMP polishing liquid is measured to be within 0 to 300 mV.
Career Highlights
Throughout his career, Kouji Mishima has worked with prominent companies in the industry. He has been associated with Hitachi Chemical Company, Ltd. and Showa Denko Materials Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative polishing technologies.
Collaborations
Mishima has collaborated with talented individuals in his field, including Naomi Watanabe and Masayuki Hanano. These collaborations have contributed to the advancement of polishing technologies and have fostered a spirit of innovation.
Conclusion
Kouji Mishima's contributions to polishing technologies through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in polishing methods and materials.
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.