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For the Inventor, By the Inventor

Isehara, Japan

Masaru Tatsushima

This inventor holds 8 USPTO granted patents. Top assignees: Nikki-Universal Co., Ltd., Uop Lcc. Active years: 1978-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Tatsushima. Retrieved from https://idiyas.com/inventor/masaru-tatsushima

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 5

Forward Citations = 109(Granted Patents)


Company Filing History:

goldMedal6 out of 24 
 
Nikki-Universal Co., Ltd.
 patents
silverMedal2 out of 5,591 
 
Uop Lcc
 patents

Years Active: 1978-2001

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8 patents (USPTO):Explore Patents
1. 6280608 - Layered catalyst composition and processes for preparing and using the composition (2001-08-28),
2. 6177381 - Layered catalyst composition and processes for preparing and using the composition (2001-01-23),
3. 4871709 - Ozone cracking catalyst (1989-10-03),
4. 4615999 - Method for preparing hydrodesulfurization catalyst (1986-10-07),
5. 4613585 - Process of preparing alumina for use in catalyst carrier (1986-09-23),
6. 4399119 - Manufacture of spherical alumina from gibbsite (1983-08-16),
7. 4309312 - Manufacture of spherical alumina from gibbsite (1982-01-05),
8. 4108971 - Method of manufacture of spherical alumina particles (1978-08-22),

Title: Masaru Tatsushima: Innovator in Catalyst Technology

Introduction

Masaru Tatsushima is a prominent inventor based in Isehara, Japan. He has made significant contributions to the field of catalyst technology, holding a total of eight patents. His work focuses on improving the efficiency and durability of catalyst compositions used in various chemical processes.

Latest Patents

One of Tatsushima's latest patents is for a layered catalyst composition and processes for preparing and using the composition. This invention involves a catalyst composition that features an inner core made of alpha-alumina, with an outer layer composed of a refractory inorganic oxide such as gamma-alumina. The outer layer is uniformly dispersed with a platinum group metal, such as platinum, and a promoter metal like tin. Additionally, the composition includes a modifier metal, such as lithium. This innovative catalyst composition demonstrates improved durability and selectivity for dehydrogenating hydrocarbons.

Career Highlights

Throughout his career, Tatsushima has worked with notable companies, including Nikki Universal Co., Ltd. and UOP LLC. His experience in these organizations has allowed him to develop and refine his expertise in catalyst technology.

Collaborations

Tatsushima has collaborated with several professionals in his field, including Shizuo Takumi and Toshio Hashimoto. These collaborations have contributed to the advancement of his research and innovations.

Conclusion

Masaru Tatsushima is a key figure in the development of advanced catalyst technologies. His innovative patents and collaborations have significantly impacted the field, showcasing his dedication to enhancing chemical 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]
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