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Osaka, Osaka, Japan

Hisaka Works, Ltd.

USPTO Granted Patents = 46

EPO Patents = 14

Forward Citations = 352

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58 inventors (with patents filed for the assignee):

Hiroyuki Sumitomo (23 out of 23 patents)

Akira Horiguchi (9 out of 13 patents)

Kenzo Masutani (7 out of 7 patents)

4. Osamu Ishimaru (5 out of 5 patents)

5. Isamu Hiwatashi (3 out of 3 patents)

6. Seiichi Matsumura (3 out of 5 patents)

7. Mana Iwaki (3 out of 3 patents)

8. Kiyoshi Ishihama (3 out of 3 patents)

9. Kenji Kusunoki (3 out of 3 patents)

10. Haruo Uehara (3 out of 18 patents)

11. Yoshiharu Sakai (3 out of 3 patents)

12. Kazuyuki Kobayashi (3 out of 3 patents)

13. Ken'ichi Yamada (3 out of 3 patents)

14. Masafumi Inoue (2 out of 31 patents)

15. Mitsuhiko Tanahashi (2 out of 2 patents)

Core Competencies:

Plate Heat Exchanger

Vapor Contact-Type Heating Device

Ball Valve

Sterilization Apparatus

Air Jet Flow Treatment

Thin Film Concentrating Apparatus

Fried Food Production

Heat Recovery System

Textile Material Treatment

Evaporating Apparatus

Retort Sterilizer

Waste Heat Recovery

46 patents: Sort by Forward Citations

1. 9933211 - Plate heat exchanger (2018-04-03),

2. 9927186 - Plate heat exchanger (2018-03-27),

3. 9772146 - Plate heat exchanger (2017-09-26),

4. 8262066 - Vapor contact-type heating device (2012-09-11),

5. 7775502 - Ball valve with a rotatable body capable of being kept out of substantial contact with a seat member (2010-08-17),

6. 5988268 - Plate type heat exchanger (1999-11-23),

7. 5895626 - Sterilizing method, apparatus and container of solid matter or liquid (1999-04-20),

8. 5850651 - Air jet flow type apparatus and method for treating textile material (1998-12-22),

9. 5849246 - Apparatus for spray sterilization and method therefor (1998-12-15),

10. 5721001 - Fried food producing method and apparatus therefor (1998-02-24),

11. 5538593 - Thin film flow-down type concentrating apparatus (1996-07-23),

12. 5527516 - Spray type retort sterilizer (1996-06-18),

13. 5343913 - Wood treating method and apparatus (1994-09-06),

14. 5247975 - Wood treating method and apparatus (1993-09-28),

15. 5178212 - Plate-type heat exchanger (1993-01-12),

Hisaka Works, Ltd. is a renowned industrial equipment manufacturer specializing in heat exchangers, pressure vessels, and other process equipment. With over 70 years of experience, the company has a strong reputation for delivering high-quality and reliable products that meet the diverse needs of its clients globally. Hisaka Works remains committed to continuous innovation, ensuring their equipment adheres to the highest standards of efficiency, safety, and environmental sustainability.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

46 Patents

#1 in Osaka, Osaka

#1,770 in Japan

#14,689 in the World

Osaka, Osaka, Japan

Hisaka Works, Ltd.

Forward Citations = 352

58 inventors:

Hiroyuki Sumitomo (23 out of 23 patents)

Akira Horiguchi (9 out of 13 patents)

Kenzo Masutani (7 out of 7 patents)

4. Osamu Ishimaru (5 out of 5 patents)

5. Isamu Hiwatashi (3 out of 3 patents)

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