This inventor holds 36 USPTO granted patents and 2 published patent applications, plus 5 CIPO patents and 10 EPO patents, primarily in Surface-Treated Steel. Top assignees: Nippon Steel Corporation, Nippon Steel Sumitomo Metal Corporation, Nippon Steel & Sumikin Materials Co., Ltd.. Active years: 2002-2024.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hyogo, JP (2013 - 2016)
- Himeji, JP (2002 - 2019)
- Tokyo, JP (2015 - 2024)
Company Filing History:
24 out of 3,721 
12 out of 1,102 
3 out of 42 
Years Active: 2002-2024
Areas of Expertise:
Title: Innovator Spotlight: Kiyokazu Ishizuka, Patent Holder from Himeji, Japan
Introduction: Kiyokazu Ishizuka, located in Himeji, Japan, is a distinguished inventor known for his substantial contributions to the field of materials science, specifically in the development of innovative steel advancements. With a remarkable portfolio of 36 patents, Ishizuka has played a pivotal role in enhancing steel production technologies.
Latest Patents: Among his recent innovations are the patented Ni-plated steel sheet and the method for manufacturing such steel sheets. This invention features a base steel sheet with a Ni-based coating layer applied to its surface. Notably, the carbon concentration profile analyzed via Glow Discharge Spectroscopy (GDS) reveals a peak near the interface between the base sheet and the coating, indicating a significant increase in carbon concentration compared to other regions.
Ishizuka's invention of the Ni diffusion-plated steel sheet also stands out. This innovation consists of a base steel sheet with a Fe—Ni diffusion alloy-plating layer on at least one of its surfaces. The new design specifies an Ni coating weight of 9.0 to 20 g/m and a mass percentage of Fe concentrated at the outermost layer ranging from 10% to 55%, all while adhering to JIS G 0551 (2013) standards for ferrite grain size.
Career Highlights: Ishizuka's career has been marked by his tenure at significant steel manufacturing giants, including Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His work in these organizations has not only contributed to his extensive patent portfolio but has also impacted the steel industry at large.
Collaborations: Throughout his career, Ishizuka has collaborated with notable colleagues, such as Yasuto Goto and Takehiro Takahashi. These partnerships have fostered innovation and facilitated advancements in the technologies associated with steel manufacturing.
Conclusion: Kiyokazu Ishizuka's extensive contributions to the field of steel technology through his innovative patents reflect his dedication to advancing industrial practices. His recent patents demonstrate significant progress in the materials used for steel sheets, marking him as a prominent inventor in the industry. The work of Ishizuka not only enhances manufacturing techniques but also paves the way for future innovations in steel engineering.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile