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Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material pow 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01F-001/032
출원번호 US-0878523 (1992-05-05)
우선권정보 JP-0097023 (1992-03-24)
발명자 / 주소
  • Fukuno Akira (Chiba JPX) Nakamura Hideki (Narita JPX) Yoneyama Tetsuhito (Narashino JPX)
출원인 / 주소
  • TDK Corporation (Tokyo JPX 03)
인용정보 피인용 횟수 : 26  인용 특허 : 0

초록

A permanent magnet material is prepared by cooling with a chill roll a molten alloy containing R wherein R is at least one rare earth element inclusive of Y, Fe or Fe and Co, and B. The chill roll has a plurality of circumferentially extending grooves in a circumferential surface, the distance betwe

대표청구항

A method for preparing a permanent magnet material by cooling a molten alloy containing R wherein R is at least one rare earth element inclusive of Y, Fe or Fe and Co, and B, said method comprising: providing a chill roll having an axis, a circumferential surface, and a plurality of grooves in the c

이 특허를 인용한 특허 (26)

  1. Nishiuchi,Takeshi; Kanekiyo,Hirokazu; Hirosawa,Satoshi; Miyoshi,Toshio, Compound for rare-earth bonded magnet and bonded magnet using the compound.
  2. Arai, Akira; Kato, Hiroshi, Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets.
  3. Arai, Akira; Kato, Hiroshi, Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets.
  4. Arai, Akira; Kato, Hiroshi, Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets.
  5. Arai, Akira; Kato, Hiroshi, Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets.
  6. Kanekiyo,Hirokazu; Miyoshi,Toshio; Hirosawa,Satoshi, Iron-based rare earth alloy nanocomposite magnet and method for producing the same.
  7. Arai,Akira; Kato,Hiroshi, Magnetic material manufacturing method, ribbon-shaped magnetic materials, powdered magnetic material and bonded magnets.
  8. Arai, Akira; Kato, Hiroshi, Magnetic material manufacturing method, ribbon-shaped magnetic materials, powdered magnetic materials and bonded magnets.
  9. Arai, Akira; Kato, Hiroshi, Magnetic powder and bonded magnet.
  10. Arai, Akira; Kato, Hiroshi, Magnetic powder and bonded magnet.
  11. Strasik, Michael, Mechanical improvement of rare earth permanent magnets.
  12. Yoshizawa, Hiroki; Matsuda, Kenji; Nebashi, Kiyoshi, Metal-flake manufacturing apparatus.
  13. Yuhong Huang ; Qiang Wei ; Haixing Zheng, Method for preparing high cure temperature rare earth iron compound magnetic material.
  14. Fukuno Akira,JPX ; Nakamura Hideki,JPX ; Yoneyama Tetsuhito,JPX, Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material po.
  15. Miyoshi,Toshio; Kanekiyo,Hirokazu; Hirosawa,Satoshi, Method for producing nanocomposite magnet using atomizing method.
  16. Arai, Akira; Kato, Hiroshi, Method of manufacturing magnet materials, and ribbon-shaped magnet materials, powdered magnet materials and bonded magnets.
  17. Arai, Akira; Kato, Hiroshi, Method of manufacturing magnetic powder, magnetic powder and bonded magnets.
  18. Arai, Akira; Kato, Hiroshi, Method of manufacturing magnetic powder, magnetic powder and bonded magnets.
  19. Sasaki, Hideo, Method of producing rare earth alloy flakes.
  20. Kanekiyo,Hirokazu; Miyoshi,Toshio; Hirosawa,Satoshi, Nanocomposite magnet.
  21. Kanekiyo,Hirokazu; Miyoshi,Toshio; Hirosawa,Satoshi; Shigemoto,Yasutaka; Shioya,Yusuke, Permanent magnet including multiple ferromagnetic phases and method for producing the magnet.
  22. Fukuno Akira,JPX ; Yamamoto Tomomi,JPX ; Yoneyama Tetsuhito,JPX ; Hidaka Tetsuya,JPX, Preparation of magnet.
  23. Shintani, Kazumasa; Murakami, Ryo; Yamamoto, Kazuhiko, Process for producing alloy slab for rare-earth sintered magnet, alloy slab for rare-earth sintered magnet and rare-earth sintered magnet.
  24. Shintani, Kazumasa; Murakami, Ryo; Yamamoto, Kazuhiko, Process for producing alloy slab for rare-earth sintered magnet, alloy slab for rare-earth sintered magnet and rare-earth sintered magnet.
  25. Rabin Barry H. ; Sellers Charles H., Rare earth permanent magnet and method for making same.
  26. 65906 ; 19870500 ; Jervis, Sheet magnet having microcrystalline structure and method of manufacturing the same, and method of manufacturing isotropic permanent magnet powder.
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