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For the Inventor, By the Inventor

Kanagawa, Japan

Yuji Tanaka

This inventor holds 15 USPTO granted patents and 2 published patent applications, primarily in Automotive Seating Technology. Top assignees: Ikeda Bussan Co. Ltd., Asahi Kasei Kogyo Kabushiki Kaisha, Ohi Seisakusho Co., Ltd.. Active years: 1987-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Tanaka. Retrieved from https://idiyas.com/inventor/yuji-tanaka-ov64pbpi

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

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 7

Forward Citations = 162(Granted Patents)


Location History:

  • Fujisawa, JP (1987)
  • Ayase, JP (1989 - 1998)
  • Yokohama, JP (1993 - 1998)
  • Kanagawa, JP (1989 - 1999)
  • Yokosuka, JP (2006)

Company Filing History:

goldMedal11 out of 317 
 
Ikeda Bussan Co. Ltd.
 patents
silverMedal3 out of 1,297 
 
Asahi Kasei Kogyo Kabushiki Kaisha
 patents
bronzeMedal3 out of 242 
 
Ohi Seisakusho Co., Ltd.
 patents
4. 1 out of 1,001 
 
Asahi Kasei Kabushiki Kaisha
 patents
5. 1 out of 13,420 
 
Nissan Motor Company Limited
 patents
where one patent can have more than one assignee

Years Active: 1987-2006

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Areas of Expertise:
Foam Injection Molding
Injection Compression Molding
Hollow Article
Vehicular Seat Adjuster
Power Seat Slider
Automobile Seat Head Rest
Seat Lifter
Latch Device
Seat Slide Device
Lock Mechanism
15 patents (USPTO):Explore Patents
1. 7077987 - Foam injection molding method (2006-07-18),
2. 5993723 - Injection compression molding method (1999-11-30),
3. 5849377 - Injection-molded hollow article, hollow injection molding method and (1998-12-15),
4. 5738327 - Vehicular seat adjuster (1998-04-14),
5. 5176866 - Process for producing a resin product having a bent hollow portion and a (1993-01-05),
6. 5080419 - Bracket (1992-01-14),
7. 5048786 - Power seat slider driving mechanism (1991-09-17),
8. 4991907 - Automobile seat head rest device (1991-02-12),
9. 4986509 - Seat lifter (1991-01-22),
10. 4969688 - Vehicular seat (1990-11-13),
11. 4919486 - Vehicular seat (1990-04-24),
12. 4904003 - Latch device for inclinable back rest cushion mounted in seatback (1990-02-27),
13. 4880264 - Latch device for inclinable back rest cushion mounted in seatback (1989-11-14),
14. 4821989 - Seat slide device (1989-04-18),
15. 4635890 - Lock mechanism for adjustable seat (1987-01-13),

Title: Yuji Tanaka: Innovator in Foam Injection Molding

Introduction

Yuji Tanaka is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of thermoplastic resin molding, holding a total of 15 patents. His innovative techniques have advanced the manufacturing processes in various industries.

Latest Patents

Among his latest patents is a foam injection molding method. This method involves several steps, including providing a mold with a fixed and movable half, injecting a foamable thermoplastic resin, applying pressure to form a surface skin layer, and releasing a portion of the resin mass to initiate foaming. Another notable patent is an injection compression molding method, which features the injection of resin from a gate near a thick rib portion, followed by gas injection before the mold is closed and compressed.

Career Highlights

Yuji Tanaka has worked with notable companies such as Ikeda Bussan Co., Ltd. and Ohi Seisakusho Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to the development of innovative molding techniques.

Collaborations

Throughout his career, Tanaka has collaborated with talented individuals, including Isamu Chinomi and Hiroshi Yamazaki. These partnerships have fostered a creative environment that has led to the successful development of his patented technologies.

Conclusion

Yuji Tanaka's work in foam injection molding and injection compression molding has positioned him as a key figure in the field of thermoplastic resin innovation. His contributions continue to influence manufacturing processes and inspire future advancements.

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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