Hiroyasu Niitsuma

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Patents Grantslast 30 patents

Information Patent Grant
Immersion nozzle for continuous casting
- Patent number 11,897,027
- Issue date Feb 13, 2024
- Shinagawa Refractories Co., Ltd.
- Hiroyasu Niitsuma
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Submerged entry nozzle
- Patent number 11,806,781
- Issue date Nov 7, 2023
- Shinagawa Refractories Co., Ltd.
- Hiroyasu Niitsuma
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Submerged nozzle for continuous casting apparatus
- Patent number 9,573,189
- Issue date Feb 21, 2017
- Shinagawa Refractories Co., Ltd.
- Hiroyasu Niitsuma
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
IMMERSION NOZZLE
- Publication number 20240238869
- Publication date Jul 18, 2024
- SHINAGAWA REFRACTORIES CO., LTD.
- Kanae NISHIO
- B22 - CASTING POWDER METALLURGY
Information Patent Application
IMMERSION NOZZLE FOR CONTINUOUS CASTING
- Publication number 20230347406
- Publication date Nov 2, 2023
- SHINAGAWA REFRACTORIES CO., LTD.
- Hiroyasu NIITSUMA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
SUBMERGED ENTRY NOZZLE
- Publication number 20230058990
- Publication date Feb 23, 2023
- SHINAGAWA REFRACTORIES CO., LTD.
- Hiroyasu NIITSUMA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
SUBMERGED NOZZLE FOR CONTINUOUS CASTING APPARATUS
- Publication number 20150068701
- Publication date Mar 12, 2015
- Hiroyasu Niitsuma
- B22 - CASTING POWDER METALLURGY