For the Inventor, By the Inventor

Enter assignee name

Totaku Industries, Inc.

USPTO Granted Patents = 34

% Expired Patents = 14.7

Forward Citations = 507

Loading Chart...

Loading Chart...

34 inventors (with patents filed for the assignee):

Kouki Fukui (10 out of 10 patents)

Hiroyuki Masui (8 out of 8 patents)

Hiroyuki Amatsutsu (8 out of 8 patents)

4. Yasuhiro Kikumori (7 out of 7 patents)

5. Toshihiro Nakanishi (5 out of 14 patents)

6. Hiroshi Ikegami (4 out of 10 patents)

7. Yoshiaki Tatsuta (4 out of 4 patents)

8. Kazuya Yamashita (2 out of 18 patents)

9. Masaru Sato (2 out of 12 patents)

10. Tatsuya Machino (2 out of 2 patents)

11. Isao Kurimoto (2 out of 2 patents)

12. Susumu Okairi (2 out of 2 patents)

13. Tomio Inada (2 out of 2 patents)

14. Akihiro Fujii (1 out of 10 patents)

15. Syoji Hirao (1 out of 1 patent)

Core Competencies:

Porous Pipe

Flexible Hose

Pipe-Connecting Joint

Corrugated Pipe

Heat-Insulating Duct

Synthetic Resin Pipe

Spirally Corrugated Pipe

Connector

Bellmouth

Noise Reducing Duct

Underdrain Pipe

Washing Machine Hose

34 patents: Sort by Forward Citations

1. 6905286 - Porous pipe and apparatus and method of producing the same (2005-06-14),

2. 6659510 - Pipe-end-connecting joint (2003-12-09),

3. 6659136 - Flexible hose (2003-12-09),

4. 6581979 - Joint for spiral pipe and connecting method (2003-06-24),

5. 6471251 - Spirally corrugated pipe elbow and method for manufacturing same (2002-10-29),

6. 6435567 - Coupling structure for tube (2002-08-20),

7. 6398270 - Corrugated pipe joint (2002-06-04),

8. 6367849 - Joint for corrugated pipe (2002-04-09),

9. 6347646 - Flexible hose (2002-02-19),

10. 6340181 - Bellmouth with joint block body with the bellmouth and hand hole with the bellmouth (2002-01-22),

11. 6338507 - Synthetic resin pipe with joint (2002-01-15),

12. 6250339 - Sound-absorbing and heat-insulating duct (2001-06-26),

13. 6237969 - Connector for connecting spirally corrugated pipe to wall (2001-05-29),

14. 6235232 - Synthetic resin hose and method for producing the same (2001-05-22),

15. 6227578 - Corrugated resin elbow (2001-05-08),

Company Overview

Totaku Industries, Inc. is a prominent player in the manufacturing sector, specializing in advanced materials and components for various industries. Based in Osaka, Japan, the company focuses on developing innovative solutions that enhance product performance and reliability. With a commitment to research and development, Totaku engages in cutting-edge technology domains, including electronics and automotive applications. The organization aims to meet the evolving needs of its clients through high-quality, precision-engineered products.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

34 Patents

#228 in Osaka

#2,172 in Japan

#19,651 in the World

Totaku Industries, Inc.

Forward Citations = 507

34 inventors:

Kouki Fukui (10 out of 10 patents)

Hiroyuki Masui (8 out of 8 patents)

Hiroyuki Amatsutsu (8 out of 8 patents)

4. Yasuhiro Kikumori (7 out of 7 patents)

5. Toshihiro Nakanishi (5 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Totaku Industries, Inc.. Retrieved from https://idiyas.com/company/totaku-industries

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

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]

Loading…