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For the Inventor, By the Inventor

Omiya, Japan

Kenichi Hijikata

This inventor holds 9 USPTO granted patents. Top assignees: Mitsubishi Materials Corporation, Mitsubishi Kinzoku Kabushiki Kaisha, Mitsubishi Metal Corporation. Active years: 1986-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenichi Hijikata. Retrieved from https://idiyas.com/inventor/kenichi-hijikata

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 5

Forward Citations = 92(Granted Patents)


Location History:

  • Urawa, JP (1986 - 1991)
  • Ohmiya, JP (1991)
  • Saitama, JP (1997)
  • Omiya, JP (1994 - 1998)

Company Filing History:

goldMedal5 out of 1,555 
 
Mitsubishi Materials Corporation
 patents
silverMedal2 out of 197 
 
Mitsubishi Kinzoku Kabushiki Kaisha
 patents
bronzeMedal2 out of 68 
 
Mitsubishi Metal Corporation
 patents
4. 1 out of 25,949 
 
Sharp Kabushiki Kaisha Corporation
 patents
where one patent can have more than one assignee

Years Active: 1986-1998

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9 patents (USPTO):Explore Patents
1. 5738947 - Corrosion-resistant film for protecting surfaces of Ag and (1998-04-14),
2. 5630886 - Corrosion-resistant film for protecting surfaces of Ag and (1997-05-20),
3. 5612133 - Magneto-optical recording medium having a refelecting layer of a (1997-03-18),
4. 5338331 - Low-permeability high-strength target material for the formation of thin (1994-08-16),
5. 5066381 - Target unit (1991-11-19),
6. 5057161 - P-type Fe silicide thermoelectric conversion material (1991-10-15),
7. 5009717 - Thermoelectric element and method of manufacturing same (1991-04-23),
8. 4620872 - Composite target material and process for producing the same (1986-11-04),
9. 4619697 - Sputtering target material and process for producing the same (1986-10-28),

Title: Kenichi Hijikata: Innovator in Corrosion-Resistant Technologies

Introduction

Kenichi Hijikata is a notable inventor based in Omiya, Japan. He has made significant contributions to the field of materials science, particularly in the development of corrosion-resistant films. With a total of 9 patents to his name, Hijikata's work has had a substantial impact on various industries.

Latest Patents

One of his latest patents involves a corrosion-resistant film designed to protect the surfaces of silver (Ag). This innovative film comprises an Ag-Mg alloy with an magnesium (Mg) content ranging from 1 to 10 atomic percent. The film is applied to an Ag substrate, creating a protective composite structure that prevents the silver from blackening due to sulfide components. The film exhibits excellent adhesiveness to the Ag substrate and maintains high reflectivity, making it suitable for applications in photo-magnetic recording media, optical recording media, reflectors, and illuminators. Additionally, the surface of the corrosion-resistant film is oxidized to form an MgO layer, enhancing its protective effect.

Career Highlights

Throughout his career, Kenichi Hijikata has worked with prominent companies such as Mitsubishi Materials Corporation and Mitsubishi Kinzoku Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in materials science and innovation.

Collaborations

Some of his notable coworkers include Masashi Komabayashi and Rie Mori. Their collaborative efforts have contributed to the advancement of technologies in their respective fields.

Conclusion

Kenichi Hijikata's innovative work in corrosion-resistant technologies showcases his dedication to improving material performance. His patents reflect a commitment to advancing the field and addressing practical challenges in various applications.

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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