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For the Inventor, By the Inventor

Funabashi, Japan

Kazunobu Kakimoto

This inventor holds 2 USPTO granted patents. Top assignees: Mitsui Minings & Melting Co., Ltd., Tokyo Kokyu Rozai Co., Ltd.. Active years: 1976-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunobu Kakimoto. Retrieved from https://idiyas.com/inventor/kazunobu-kakimoto

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

USPTO Granted Patents = 2

% Patents Active = 100.0

Average Co-Inventor Count = 5.8

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Funabashi, JA (1976)
  • Chiba, JP (1999)

Company Filing History:

goldMedal2 out of 817 
 
Mitsui Minings & Melting Co., Ltd.
 patents
silverMedal1 out of 2 
 
Tokyo Kokyu Rozai Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1976-1999

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2 patents (USPTO):Explore Patents
1. 5998322 - Filter medium for molten metals (1999-12-07),
2. 3939079 - Filter medium which permits increased amount of filtration (1976-02-17),

Title: Kazunobu Kakimoto: Innovator in Filter Medium Technology

Introduction

Kazunobu Kakimoto is a notable inventor based in Funabashi, Japan. He has made significant contributions to the field of filter medium technology, particularly for molten metals. With a total of 2 patents, his work has advanced the efficiency and effectiveness of filtration processes in metallurgy.

Latest Patents

Kakimoto's latest patents include a filter medium specifically designed for molten metals. This innovative filter medium consists of a sintered body made from a mixture of refractory grains, including alumina particles and Al₂O₃.MgO spinel crystal particles. The invention aims to filter out solid impurities from molten metals, especially molten aluminum. Another patent focuses on a filter medium that allows for an increased amount of filtration. This medium is created by blending aggregate particles with an inorganic bonding material and a combustible substance, which can be adjusted to control the size and number of air-permeable pores.

Career Highlights

Throughout his career, Kakimoto has worked with prominent companies such as Mitsui Mining & Smelting Company, Ltd. and Tokyo Kokyu Rozai Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced filtration technologies.

Collaborations

Kakimoto has collaborated with notable individuals in his field, including Hiroshi Uchiyama and Yoshio Fujiwara. These partnerships have likely enriched his research and development efforts.

Conclusion

Kazunobu Kakimoto's contributions to filter medium technology have made a significant impact in the metallurgy industry. His innovative patents demonstrate his commitment to improving filtration processes for molten metals.

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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