logo

For the Inventor, By the Inventor

Futtsu, Japan

Hiroyuki Katayama

This inventor holds 7 USPTO granted patents. Top assignees: Nippon Steel Corporation, Japan Metals & Chemicals Co., Ltd.. Active years: 1976-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Katayama. Retrieved from https://idiyas.com/inventor/hiroyuki-katayama-1m3psuwi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 4.7

ph-index = 4

Forward Citations = 32(Granted Patents)


Location History:

  • Kitakyushu, JA (1976)
  • Fukuoka, J (1976)
  • Munakata, JP (1980)
  • Fukuoka, JP (1983)
  • Fukuokaken, JP (1986)
  • Kitakyusyushi, JP (1987)
  • Futtsu, JP (1999)

Company Filing History:

goldMedal7 out of 3,724 
 
Nippon Steel Corporation
 patents
silverMedal2 out of 50 
 
Japan Metals & Chemicals Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-1999

Loading Chart...
7 patents (USPTO):Explore Patents
1. 5889810 - Apparatus for preheating and melting of scrap and process for the same (1999-03-30),
2. 4662937 - Process for production of high-manganese iron alloy by smelting reduction (1987-05-05),
3. 4565574 - Process for production of high-chromium alloy by smelting reduction (1986-01-21),
4. 4410360 - Process for producing high chromium steel (1983-10-18),
5. 4198229 - Method of dephosphorization of metal or alloy (1980-04-15),
6. 3999978 - Method for making steel by the use of a flux treated by carbon dioxide (1976-12-28),
7. 3976473 - Method for producing an extremely low carbon and nitrogen steel in a (1976-08-24),

Title: Hiroyuki Katayama: Innovator in Metallurgical Processes

Introduction

Hiroyuki Katayama is a prominent inventor based in Futtsu, Japan. He has made significant contributions to the field of metallurgy, particularly in the production of high-manganese iron alloys. With a total of 7 patents to his name, Katayama's work has had a lasting impact on the industry.

Latest Patents

Among his latest patents is the "Apparatus for preheating and melting of scrap and process for the same." This innovative process involves the production of high-manganese iron alloy through smelting reduction. The method utilizes a top and bottom blown converter type reaction vessel, where gas is blown into the vessel to facilitate the melting and reduction of raw materials. This process not only enhances efficiency but also optimizes the use of resources in alloy production.

Career Highlights

Hiroyuki Katayama has worked with notable companies such as Nippon Steel Corporation and Japan Metals & Chemicals Co., Ltd. His experience in these organizations has allowed him to refine his expertise in metallurgical processes and contribute to advancements in the field.

Collaborations

Throughout his career, Katayama has collaborated with esteemed colleagues, including Hidetake Ishikawa and Masatoshi Kuwabara. These partnerships have fostered innovation and have been instrumental in the development of new technologies in metallurgy.

Conclusion

Hiroyuki Katayama's contributions to the field of metallurgy, particularly through his innovative patents, have established him as a key figure in the industry. His work continues to influence the production of high-manganese iron alloys, showcasing the importance of innovation in advancing metallurgical processes.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…