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For the Inventor, By the Inventor

Funabashi, Japan

Tatsuo Ishikawa

This inventor holds 10 USPTO granted patents. Top assignees: Yoshida Industry Co., Ltd., Yoshida Kogyo Co., Ltd.. Active years: 1985-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Ishikawa. Retrieved from https://idiyas.com/inventor/tatsuo-ishikawa-v4uroig2

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

Calculating rank
USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 153(Granted Patents)


Location History:

  • Chiba, JP (1985 - 1987)
  • Funabashi, JP (1989 - 1993)
  • Tokyo, JP (1997)
  • Sakura, JP (2002)

Company Filing History:

goldMedal8 out of 76 
 
Yoshida Industry Co., Ltd.
 patents
silverMedal2 out of 10 
 
Yoshida Kogyo Co., Ltd.
 patents

Years Active: 1985-2002

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10 patents (USPTO):Explore Patents
1. 6382448 - Housing case and a method of making thereof (2002-05-07),
2. 5615803 - Tube container (1997-04-01),
3. 5219373 - Method of fabricating tube container (1993-06-15),
4. 5076470 - Tube container (1991-12-31),
5. 4980115 - Method for making an injection-molded product having a partly thin (1990-12-25),
6. 4820149 - Apparatus for manufacturing an injection-molded product having a partly (1989-04-11),
7. 4679576 - Vanity case (1987-07-14),
8. 4635826 - Tube container for receiving semifluid material (1987-01-13),
9. 4518554 - Method and apparatus for molding a tubular container with a cap (1985-05-21),
10. 4496513 - Tubular container molding method and apparatus (1985-01-29),

Title: The Innovative Mind of Tatsuo Ishikawa

Introduction

Tatsuo Ishikawa, an inventive force hailing from Funabashi, Japan, has made significant contributions to the world of technology and design through his innovative inventions. With a total of 10 patents to his name, Ishikawa’s work showcases his dedication to advancing industrial capabilities and consumer products.

Latest Patents

Among Ishikawa's recent inventions are two notable patents. The first is a housing case designed for apparatuses that features both a display window and an opaque ornamental layer. This unique housing case incorporates a transparent synthetic resin sheet with a patterned opaque printing layer that corresponds to the display window. The design allows for the simultaneous formation of an ornamental pattern and a display window when creating the housing case.

The second patent focuses on a tube container characterized by an outer tube with an extruding mouth at one end and two inner tubes, each also having extruding mouths. This innovative design ensures that the inner tubes are securely placed within the outer tube and that they are hermetically sealed. The outer tube adopts a unique elliptical shape, allowing for efficient arrangement and sealing of its components.

Career Highlights

Tatsuo Ishikawa has collaborated with esteemed companies such as Yoshida Industry Co., Ltd. and Yoshida Kogyo Co., Ltd., allowing him to influence various sectors with his innovative designs. His patents reflect an impressive mastery of practical applications in technology and materials.

Collaborations

Throughout his career, Ishikawa has worked alongside prominent colleagues like Yoshiharu Hatakeyama and Kenzo Teshima. These collaborations have furthered his exploration of inventive solutions, enhancing the scope and impact of his work.

Conclusion

Tatsuo Ishikawa’s journey as an inventor illustrates the power of innovation in driving technological advancements. With his latest patents, he continues to demonstrate his ability to merge functionality with elegant design, making a lasting impact on the industries he has influenced.

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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