For the Inventor, By the Inventor

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Wakayama, Japan

Sando Iron Works Co., Ltd.

USPTO Granted Patents = 88

Forward Citations = 322

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15 inventors (with patents filed for the assignee):

Hiroshi Ishidoshiro (86 out of 89 patents)

Yoshikazu Sando (78 out of 81 patents)

Eiichi Nakano (13 out of 13 patents)

4. Matsuo Minakata (12 out of 13 patents)

5. Yoshiteru Sando (9 out of 9 patents)

6. Tokuju Goto (9 out of 9 patents)

7. Itsuo Tanaka (7 out of 7 patents)

8. Koji Sando (6 out of 6 patents)

9. Keiji Saika (1 out of 2 patents)

10. Masanobu Tomatsu (1 out of 2 patents)

11. Isao Kamei (1 out of 2 patents)

12. Takashi Tsuchihashi (1 out of 1 patent)

13. Yusikazu Sando (1 out of 1 patent)

14. Susumu Niwa (1 out of 1 patent)

15. Masakatu Takahashi (1 out of 1 patent)

Core Competencies:

Continuous Dyeing

Cloth Pretreatment

Waste Water Treatment

Plasma Treatment

Textile Processing

High Temperature Treatment

Bleaching Techniques

Singeing Apparatus

Dehydration Methods

Foam Application

Knitted Fabric Treatment

Liquid Treatment

88 patents: Sort by Forward Citations

1. 5495729 - Method for high temperature and high pressure continuous dyeing of a (1996-03-05),

2. 5435156 - Method and apparatus for the pretreatment of a cloth (1995-07-25),

3. 5407446 - Method and apparatus for the pretreatment of a cloth (1995-04-18),

4. 5370707 - Method for bleaching cloth (1994-12-06),

5. 5334224 - Method for continuous pretreatment of a cloth (1994-08-02),

6. 5234463 - Method for desizing and scouring of a cloth (1993-08-10),

7. 5180497 - Method for decolorization of waste water (1993-01-19),

8. 5110481 - Method for separation of polyvinyl alcohol from aqueous solutions (1992-05-05),

9. 4834766 - Method for preventing scale adhesion (1989-05-30),

10. 4829189 - Apparatus for low-temperature plasma treatment of sheet material (1989-05-09),

11. 4772398 - Method for treatment of waste water and its apparatus (1988-09-20),

12. 4750275 - Cylinder drying machine (1988-06-14),

13. 4742697 - Apparatus for continuous wet heat treatment of a cloth (1988-05-10),

14. 4742589 - Method for continuous liquid treatment of a cloth (1988-05-10),

15. 4711102 - Wet heat treating apparatus of a cloth for performing dyeing and washing (1987-12-08),

Sando Iron Works Co., Ltd. is a leading manufacturer and supplier of high-quality iron and steel products. With over two decades of experience, we specialize in the production of structural steel, industrial equipment, and custom iron works. Our state-of-the-art facilities and skilled workforce allow us to deliver exceptional products that meet the highest industry standards. From designing to fabrication and installation, we offer comprehensive solutions tailored to our clients' specific requirements. At Sando Iron Works, we take pride in our craftsmanship, attention to detail, and commitment to customer satisfaction. Visit our website to explore our product range and learn more about our capabilities.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

88 Patents

#3 in Wakayama

#1,191 in Japan

#8,404 in the World

Wakayama, Japan

Sando Iron Works Co., Ltd.

Forward Citations = 322

15 inventors:

Hiroshi Ishidoshiro (86 out of 89 patents)

Yoshikazu Sando (78 out of 81 patents)

Eiichi Nakano (13 out of 13 patents)

4. Matsuo Minakata (12 out of 13 patents)

5. Yoshiteru Sando (9 out of 9 patents)

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