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For the Inventor, By the Inventor

Iwakuni, Japan

Kenji Ishimaru

This inventor holds 7 USPTO granted patents. Top assignee: Teijin Limited. Active years: 1981-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Ishimaru. Retrieved from https://idiyas.com/inventor/kenji-ishimaru-8gk6udry

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 4

Forward Citations = 45(Granted Patents)


Location History:

  • Yamaguchi, JP (1984)
  • Iwakuni, JP (1981 - 1993)

Company Filing History:

goldMedal7 out of 1,605 
 
Teijin Limited
 patents

Years Active: 1981-1993

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7 patents (USPTO):Explore Patents
1. 5250432 - Method of culturing animal cells (1993-10-05),
2. 4885057 - Method for treating synthetic pulp particles, and pulp particles (1989-12-05),
3. 4814278 - Culture apparatus and method (1989-03-21),
4. 4456553 - Vitamin D.sub.3 derivatives, process for preparation thereof, and (1984-06-26),
5. 4388243 - Process for the preparation of active-type vitamin D.sub.3 compounds (1983-06-14),
6. 4298537 - Process for producing steroid compounds having an oxo group in the side (1981-11-03),
7. 4292249 - 25-Hydroxy-24-oxocholestane derivatives and preparation thereof (1981-09-29),

Title: Kenji Ishimaru: Innovating in Cell Culture and Pulp Treatment

Introduction

Kenji Ishimaru, an inventor based in Iwakuni, Japan, has made significant contributions to the fields of biotechnology and materials science. With a total of seven patents to his name, Ishimaru's innovations focus on methods that enhance efficiency and effectiveness in cultured environments and material treatments.

Latest Patents

Among his notable contributions is the "Method of culturing animal cells," which comprises a detailed process involving the suspension culture of living animal cells. This method includes several steps such as subjecting the cells to a culture tank, withdrawing a portion of the suspension culture fluid, and employing a centrifugal separating device to isolate the living animal cells from the fluid. Furthermore, it includes the recycling of these cells back to the culture tank, ensuring optimal growth and utilization.

Another significant patent is the "Method for treating synthetic pulp particles," which innovatively addresses the treatment of synthetic pulp particles by reducing their freeness. This method involves a series of treatments that include water-washing and dispersion to adjust the properties of the pulp particles effectively.

Career Highlights

Kenji Ishimaru is currently associated with Teijin Limited, a leading technology-driven company known for its advanced materials and solutions. His work at Teijin focuses on refining processes that support both biological and industrial applications, showcasing his versatility as an inventor.

Collaborations

In his journey of innovation, Ishimaru has collaborated with notable coworkers such as Osamu Nishikawa and Hideki Tsuruta. Together, they contribute to a collaborative environment that fosters creativity and ingenuity in developing cutting-edge technologies.

Conclusion

Kenji Ishimaru stands out as a pivotal figure in the realms of biotechnology and pulp treatment, with his patents reflecting a commitment to improving existing methods. His innovative spirit continues to inspire advancements in various industries, thereby enhancing the efficiency and quality of products and 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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