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Ihi Machinery and Furnace Co., Ltd.

USPTO Granted Patents = 24

EPO Patents = 12

Forward Citations = 17

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44 inventors (with patents filed for the assignee):

Kazuhiko Katsumata (18 out of 31 patents)

Takahiro Nagata (8 out of 18 patents)

Shinya Kudo (6 out of 39 patents)

4. Takahisa Shimada (6 out of 6 patents)

5. Ami Ueda (6 out of 6 patents)

6. Masatoshi Mitsuzuka (5 out of 5 patents)

7. Osamu Sakamoto (5 out of 17 patents)

8. Akira Nakayama (4 out of 4 patents)

9. Kaoru Isomoto (4 out of 4 patents)

10. Junji Inoue (4 out of 4 patents)

11. Gen Nishitani (3 out of 3 patents)

12. Yuusuke Shimizu (3 out of 3 patents)

13. Yoshiyasu Matsuda (3 out of 3 patents)

14. Noboru Hiramoto (2 out of 3 patents)

15. Kazumi Mori (2 out of 2 patents)

24 patents: Sort by Forward Citations

1. 11820093 - Hot-press device (2023-11-21),

2. 11572614 - Multi-chamber heat treatment device (2023-02-07),

3. 11248846 - Heat treatment system (2022-02-15),

4. 10690416 - Heat treatment device (2020-06-23),

5. 10676858 - Condenser and cleaning device (2020-06-09),

6. 10648050 - Heat treatment apparatus (2020-05-12),

7. 10557180 - Heat treating device (2020-02-11),

8. 10488115 - Multi-chamber heat treatment device (2019-11-26),

9. 10392676 - Heat treatment device and cooling device (2019-08-27),

10. 10323315 - Carburizing device (2019-06-18),

11. 10273553 - Cooling device and multi-chamber heat treatment device (2019-04-30),

12. 10260814 - Conveyance device for heat treatment device and heat treatment device (2019-04-16),

13. 10118204 - Cleaning apparatus (2018-11-06),

14. 9926621 - Carburizing device (2018-03-27),

15. 9636716 - Vacuum cleaning device (2017-05-02),

IHI Machinery and Furnace Co., Ltd. is a leading global manufacturer of industrial machinery and furnaces. With a history dating back to 1853, we have accumulated extensive expertise and experience in providing innovative and reliable solutions for various industries. Our product range includes a wide range of machinery for steelmaking, rolling mills, heat treatment, and industrial furnaces. We are committed to delivering high-quality and efficient equipment that meets the specific needs and requirements of our clients worldwide. Visit our website to learn more about our products, services, and global presence.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

24 Patents

#1,068 in Tokyo

#2,579 in Japan

#25,806 in the World

Ihi Machinery and Furnace Co., Ltd.

Forward Citations = 17

44 inventors:

Kazuhiko Katsumata (18 out of 31 patents)

Takahiro Nagata (8 out of 18 patents)

Shinya Kudo (6 out of 39 patents)

4. Takahisa Shimada (6 out of 6 patents)

5. Ami Ueda (6 out of 6 patents)

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