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For the Inventor, By the Inventor

Fukuoka, Japan

Krosakiharima Corporation


USPTO Granted Patents = 77

% Expired Patents = 22.1



Trademarks = 4

Forward Citations = 137

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134 inventors (with patents filed for the assignee):

goldMedal Junichi Funato (11 out of 11 patents)

silverMedal Katsumi Morikawa (11 out of 14 patents)

bronzeMedal Toshihiro Imahase (10 out of 10 patents)

4.  Arito Mizobe (10 out of 10 patents)

5.  Shinichi Fukunaga (7 out of 14 patents)

6.  Joki Yoshitomi (6 out of 6 patents)

7.  Akinari Sasaki (5 out of 5 patents)

8.  Keiichiro Akamine (5 out of 5 patents)

9.  Nobuyuki Yokoi (5 out of 6 patents)

10.  Takahiro Kuroda (4 out of 5 patents)

11.  Joji Kurisu (4 out of 4 patents)

12.  Koji Ogata (4 out of 4 patents)

13.  Hiroshi Otsuka (4 out of 4 patents)

14.  Koji Kido (4 out of 4 patents)

15.  Kazuhiro Honda (3 out of 3 patents)


Core Competencies:
Refractory Materials
Continuous Casting Nozzles
Thermal Spray Materials
Magnesia Carbon Bricks
Immersion Nozzles
Casting Nozzles
Cordierite-based Sintered Body
Carbon-containing Refractory
High-durability Sleeve Bricks
Anti-alumina-buildup Refractories
Taphole Mix
Aluminum Oxycarbide Composition

77 patents:

1. 12673362 - Sliding nozzle device (2026-07-07),
2. 12673361 - Sliding nozzle apparatus (2026-07-07),
3. 12617728 - CaO—ZrOcomposition, method for producing CaO—ZrOcomposition, and CaO—ZrO-containing refractory material and casting nozzle (2026-05-05),
4. 12492777 - Thermal insulation pipe (2025-12-09),
5. 12350737 - Refractory product (2025-07-08),
6. 12023730 - Stopper for continuous casting and continuous casting method (2024-07-02),
7. 11958106 - Plate holding device, plate detaching apparatus, plate attaching apparatus, and plate attaching-detaching apparatus (2024-04-16),
8. 11938534 - Device for opening/closing (2024-03-26),
9. 11925980 - Certain-shaped joint material for hot installation (2024-03-12),
10. 11767269 - Method for spray application of monolithic refractory and spray material for use therein (2023-09-26),
11. 11745257 - Nozzle, and nozzle and stopper combination (2023-09-05),
12. 11708617 - Brick lining forming method (2023-07-25),
13. 11293696 - Thermal spray material (2022-04-05),
14. 11235384 - Sliding nozzle (2022-02-01),
15. 11213886 - Socket installation structure of refractory article (2022-01-04),
Krosakiharima Corporation, based in Fukuoka, Japan, specializes in the development and manufacturing of advanced refractory materials. The company focuses on a range of products including continuous casting nozzles, thermal spray materials, and magnesia carbon bricks, catering to industries that require high-performance thermal management solutions. Their expertise extends to carbon-containing refractories and cordierite-based sintered bodies, positioning them as a key player in the refractory materials sector.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

77 Patents

#6 in Fukuoka

#1,332 in Japan

#9,755 in the World

Fukuoka, JP
Fukuoka, Japan

Krosakiharima Corporation

Forward Citations = 137

134 inventors:

goldMedal Junichi Funato (11 out of 11 patents)

silverMedal Katsumi Morikawa (11 out of 14 patents)

bronzeMedal Toshihiro Imahase (10 out of 10 patents)

4.  Arito Mizobe (10 out of 10 patents)

5.  Shinichi Fukunaga (7 out of 14 patents)

Please report any incorrect information to [email protected]
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