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For the Inventor, By the Inventor

Kawasaki, Japan

Syunichi Yamamoto

This inventor holds 6 USPTO granted patents. Top assignees: Nippon Oil Company, Shinagawa Refractories Co., Ltd.. Active years: 1976-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Syunichi Yamamoto. Retrieved from https://idiyas.com/inventor/syunichi-yamamoto

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

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 5

Forward Citations = 46(Granted Patents)


Location History:

  • Yokohama, JA (1976)
  • Kawasaki, JP (1978 - 1980)

Company Filing History:

goldMedal6 out of 690 
 
Nippon Oil Company
 patents
silverMedal2 out of 100 
 
Shinagawa Refractories Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-1980

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6 patents (USPTO):Explore Patents
1. 4231857 - Process for preparing petroleum-derived binder pitch (1980-11-04),
2. 4229221 - Method for producing refractories (1980-10-21),
3. 4220474 - Amorphous refractory compositions (1980-09-02),
4. 4177132 - Process for the continuous production of petroleum-derived pitch (1979-12-04),
5. 4101635 - Method for regenerating and recycling catalyst for oxidation of sulfur (1978-07-18),
6. 3947560 - Process for oxidizing sulfur dioxide (1976-03-30),

Title: The Innovative Contributions of Syunichi Yamamoto

Introduction

Syunichi Yamamoto, an accomplished inventor based in Kawasaki, Japan, has made significant contributions to the field of material science, particularly in petroleum-derived products and refractories. With a total of six patents to his name, he has demonstrated a strong commitment to innovation and the advancement of industrial processes.

Latest Patents

Among Yamamoto's latest inventions is a notable process for preparing petroleum-derived binder pitch. This process involves heat treating a mixture of two heavy fractions obtained from the steam and catalytic cracking of petroleum. The first fraction boils at not lower than 200°C, while the second fraction is also derived from similar sources. This innovation aims to enhance the efficiency and quality of binder pitch production.

Another significant patent is a method for producing refractories. This method comprises several steps, beginning with the continuous feeding of a heavy oil with a boiling point above 150°C. This oil is processed in a stirring vessel maintained at high pressure and temperature. The method involves multiple stages, eventually leading to the creation of both unburned refractories and finished refractories by utilizing the pitch generated during the process.

Career Highlights

Yamamoto has worked with prominent companies in the industry, including Nippon Oil Company and Shinagawa Refractories Co., Ltd. His experience in these organizations has paved the way for his innovative endeavors and has allowed him to hone his skills in research and development.

Collaborations

Throughout his career, Syunichi Yamamoto has collaborated with talented individuals in the field, including coworkers Seiichi Uemura and Takao Hirose. These collaborations have contributed to the successful development of his patents and have fostered an environment of creativity and knowledge exchange.

Conclusion

In summary, Syunichi Yamamoto stands out as a pioneering inventor whose contributions in the fields of petroleum-derived products and refractories have made a notable impact on industry practices. His innovative spirit and dedication to enhancing material processes continue to inspire future advancements in technology.

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]
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