This inventor holds 7 USPTO granted patents and 3 EPO patents. Top assignees: Hitachi Metals, Ltd., Hino Motors, Ltd.. Active years: 1996-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tochigi, JP (1996)
- Tochigi-ken, JP (2002 - 2012)
- Moka, JP (1998 - 2015)
Company Filing History:
7 out of 2,333 
1 out of 248 
Years Active: 1996-2015
Title: Koki Otsuka: Innovator in Stainless Steel Technology
Introduction
Koki Otsuka is a prominent inventor based in Tochigi, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced stainless steel compositions. With a total of 7 patents to his name, Otsuka's work has had a lasting impact on various industrial applications.
Latest Patents
Otsuka's latest patents include innovative advancements in precipitation-hardened, martensitic, cast stainless steel. One notable patent describes a production method for stainless steel that features a composition comprising, by mass, 0.08-0.18% of carbon, 1.5% or less of silicon, 2.0% or less of manganese, and other specific elements. This steel is characterized by a structure in which copper precipitates, with an average particle size of 0.1-0.4 μm, are dispersed in a tempered-martensite-based matrix. Another significant patent focuses on high-chromium, high-nickel, heat-resistant, austenitic cast steel, which includes main components such as carbon, silicon, manganese, chromium, and nickel, among others. This steel is utilized in the production of exhaust equipment members.
Career Highlights
Throughout his career, Koki Otsuka has worked with notable companies such as Hitachi Metals, Ltd. and Hino Motors, Ltd. His experience in these organizations has allowed him to refine his expertise in materials engineering and contribute to groundbreaking innovations in stainless steel technology.
Collaborations
Otsuka has collaborated with esteemed colleagues, including Kenji Itoh and Hideyuki Yamanaka. These partnerships have fostered a collaborative environment that has led to the successful development of advanced materials.
Conclusion
Koki Otsuka's contributions to the field of stainless steel technology are noteworthy and impactful. His innovative patents and collaborations have positioned him as a key figure in materials science. His work continues to influence the industry and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile