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1. 发明专利

JP2005247588A Single crystal growth crucible 审中-公开
标题翻译：单晶生长可溶
公开(公告)号：JP2005247588A
公开(公告)日：2005-09-15
申请号：JP2004055813
申请日：2004-03-01
申请人： Tdk Corp , Tdk株式会社
发明人： OIDO ATSUSHI , SUGAWARA TAMOTSU
IPC分类号： C30B19/00 , C30B29/28
摘要： PROBLEM TO BE SOLVED: To provide a single crystal growth crucible used in growing a single crystal by a liquid phase epitaxial (LPE) method and particularly to provide a single crystal growth golden crucible which does not suffer from deformation when used in growing a garnet single crystal.
SOLUTION: The single crystal growth crucible is made of gold or a gold-containing material and satisfies the relationships: 0.01x≤y≤5.0 and 50
摘要翻译：要解决的问题：提供用于通过液相外延（LPE）方法生长单晶的单晶生长坩埚，特别是提供一种单晶生长金坩埚，当用于生长时不会发生变形石榴石单晶。解决方案：单晶生长坩埚由金或含金材料制成，满足以下关系：0.01x≤y≤5.0和50

2. 发明专利

JP2004269291A Tool for growing magnetic garnet single crystal film 有权
公开(公告)号：JP2004269291A
公开(公告)日：2004-09-30
申请号：JP2003059833
申请日：2003-03-06
申请人： Tdk Corp , Tdk株式会社
发明人： OIDO ATSUSHI , SUGAWARA TAMOTSU
IPC分类号： G02F1/09 , C30B19/06 , C30B29/28
摘要： PROBLEM TO BE SOLVED: To enhance the service life of an agitation tool and a substrate-fixing tool, which are used for agitating a melt and for fixing a substrate in the melt respectively, when a magnetic garnet single crystal film is grown by a liquid phase epitaxial growth method. SOLUTION: The agitation tool 1 is made of gold or a material containing gold as a main component and formed into a rectangular flat plate-like form. The agitation tool 1 is connected/fixed to an agitation rod 6 made of a ceramic at the center of its one side. The agitation tool 1 is rotated together with the agitation rod 6 so as to agitate the melt 8 by introducing the tip end of the agitation rod 6 into a crucible 4 made of a noble metal, dipping the agitation tool 1 attached to the tip end of the agitation rod 6 into the melt 8 and rotating the agitation rod 6 around the center axis of the rod. COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2004191468A Faraday rotator and optical device equipped with the same 审中-公开
标题翻译： FARADAY旋转器和配备其的光学装置
公开(公告)号：JP2004191468A
公开(公告)日：2004-07-08
申请号：JP2002356529
申请日：2002-12-09
申请人： Tdk Corp , Tdk株式会社
发明人： OIDO ATSUSHI , SUGAWARA TAMOTSU , KAKEHI SHINICHIRO , SHIMAKAWA KAZUYA
IPC分类号： G01R33/032 , C30B29/22 , G02B27/28 , G02F1/09
摘要： PROBLEM TO BE SOLVED: To provide a Faraday rotator with excellent magnetic characteristics and an optical device equipped with the same in relation to the Faraday rotator and the optical device equipped with the same. SOLUTION: The Faraday rotator is provided with a Bi substituted rare earth iron garnet single crystal film and two surfaces for incidence and emission of light formed on the single crystal film. The single crystal film is represented by a chemical formula Bi 3-x R x Fe 5-y M y O 12 (R is at least a kind of elements selected from rare earth elements including Y and is at least a kind of elements selected from Pb and Ca and x satisfies an inequality 1.5 1 and the value on the other surface as y 2 , an inequality y 2 ≤y 1 ≤2y 2 is made to be satisfied. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异磁特性的法拉第旋转器和与法拉第转子相关的光学装置和配备该法拉第旋转器的光学装置。解决方案：法拉第旋转器设有Bi取代稀土铁石榴石单晶膜和两个用于入射和发射在单晶膜上形成的光的表面。单晶膜由化学式Bi 3 SB 3-x SB 3 x SB 3 x SB 3 y S / （R是选自包括Y的稀土元素中的至少一种元素，并且是选自Pb和Ca中的至少一种元素，x满足不等式1.5 1 ，将另一个表面上的值表示为y 2 ，不等式y SB>≤y 1 ≤2y 2 。版权所有（C）2004，JPO＆NCIPI

4. 发明专利

JP2004083390A Magnetic garnet material, faraday rotator, optical device, manufacturing method of bismuth substitution type rare earth iron garnet single crystal film, and single crystal film 有权
公开(公告)号：JP2004083390A
公开(公告)日：2004-03-18
申请号：JP2003060232
申请日：2003-03-06
申请人： Tdk Corp , Tdk株式会社
发明人： SUGAWARA TAMOTSU , OIDO ATSUSHI
IPC分类号： G02F1/09 , C30B19/02 , C30B29/28
摘要： PROBLEM TO BE SOLVED: To provide a magnetic garnet maintaining a magnetic hysteresis of a square Faraday rotation angle in the temperature range in which a Faraday rotator is used. SOLUTION: The magnetic hysteresis of the Faraday rotation angle is maintained in a square shape in the temperature range in which the Faraday rotator is used by regulating the variation of a Pt concentration to be ≤200%. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2004083387A Magnetic garnet material, faraday rotator, optical device, manufacturing method for bismuth substitution type rare earth iron garnet single crystal film, and crucible 有权
公开(公告)号：JP2004083387A
公开(公告)日：2004-03-18
申请号：JP2003041799
申请日：2003-02-19
申请人： Tdk Corp , Tdk株式会社
发明人： SUGAWARA TAMOTSU , YAMAZAWA KAZUTO , OIDO ATSUSHI
IPC分类号： G02F1/09 , C01G49/00 , C30B19/02 , C30B29/28
摘要： PROBLEM TO BE SOLVED: To provide a technique for obtaining a magnetic garnet material having low degree of deterioration in optical absorption characteristics even if manufactured by an LPE method. SOLUTION: A crucible 10 used for the LPE method is constituted of Au. The quantity of Au taken in a single crystal formed by using the crucible 10 made of Au is low compared with the quantity of Pt taken in the single crystal formed by using the crucible 10 made of Pt. Au has a low degree of deteriorating insertion loss compared with Pt. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2004054215A Faraday rotator, method for manufacturing faraday rotator, and optical isolator 审中-公开
公开(公告)号：JP2004054215A
公开(公告)日：2004-02-19
申请号：JP2003047899
申请日：2003-02-25
申请人： Tdk Corp , Tdk株式会社
发明人： SUGAWARA TAMOTSU , OIDO ATSUSHI
IPC分类号： G02B5/30 , G02B1/11 , G02B27/28
摘要： PROBLEM TO BE SOLVED: To provide a method capable of distinctively discriminating between the top and reverse surfaces of a Faraday rotator by using an antireflective film. SOLUTION: While a corner part C where the antireflective film AR is not formed is provided on the top surface of the Faraday rotator 224b, the antireflective film AR is formed over the entire rear surface. An area where the antireflective film AR is formed and other areas can be recognized by irradiation with light, so the top and rear surfaces of the Faraday rotator 224b can be discriminated. Further, the top and rear surfaces can be discriminated by beveling one corner part C on the top surface. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2003337312A Manufacturing method for optical device, optical device, manufacturing method for faraday rotator, and optical communication system 审中-公开
标题翻译：光学装置的制造方法，光学装置，制冷装置的制造方法和光通信系统
公开(公告)号：JP2003337312A
公开(公告)日：2003-11-28
申请号：JP2003047898
申请日：2003-02-25
申请人： Tdk Corp , Tdk株式会社
发明人： SUGAWARA TAMOTSU , OIDO ATSUSHI
IPC分类号： G02F1/09 , C30B29/28 , G02B27/28
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for an optical device which is excellent in expediency and a technique for stable manufacturing a high performance optical device. SOLUTION: After a single crystal film which constitutes a Faraday rotator 224b and is capable of exhibiting a substantially rectangular magnetic hysteresis is obtained, the single crystal film is magnetized while incorporated in an optical device such as an optical isolator 224. The need to discriminate between the front and back of the single crystal film is eliminated by performing the magnetizing process after the Faraday rotator 224b is incorporated in the optical device, and the characteristics of the optical device are improved. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种方便性优异的光学器件的制造方法和用于稳定制造高性能光学器件的技术。解决方案：在构成法拉第旋转器224b并且能够呈现大致矩形磁滞的单晶膜之后，单晶膜被磁化，同时结合在诸如光隔离器224的光学器件中。需要通过在将法拉第旋转器224b并入光学器件之后执行磁化处理来消除单晶膜的正面和背面之间的区别，并且改善了光学器件的特性。版权所有（C）2004，JPO

8. 发明专利

JP2008195611A Crucible for growing single crystal 有权
标题翻译：可溶于生长单晶
公开(公告)号：JP2008195611A
公开(公告)日：2008-08-28
申请号：JP2008119450
申请日：2008-05-01
申请人： Tdk Corp , Tdk株式会社
发明人： OIDO ATSUSHI , SUGAWARA TAMOTSU
IPC分类号： C30B19/00
摘要： PROBLEM TO BE SOLVED: To provide a golden crucible for single crystal growing which is not deformed even when it is used for growing a garnet single crystal by a liquid phase epitaxial (LPE) method.
SOLUTION: The crucible for single crystal growing is formed of gold or a material containing gold and is characterized by satisfying the expressions: 0.01x≤y≤5.0 and 50
摘要翻译：要解决的问题：提供一种用于通过液相外延（LPE）方法用于生长石榴石单晶而不变形的单晶生长的金坩埚。解决方案：用于单晶生长的坩埚由金或含金的材料形成，其特征在于满足以下表达式：0.01x≤y≤5.0和50

9. 发明专利

JP2003277190A Magnetic garnet material, faraday rotor, optical device, optical communication system, and method for producing bismuth-substituted rare earth iron garnet single crystal film 审中-公开
标题翻译：磁性GARNET材料，FARADAY转子，光学器件，光通信系统和用于生产双相取代的稀土GARNET单晶的薄膜的方法
公开(公告)号：JP2003277190A
公开(公告)日：2003-10-02
申请号：JP2002081981
申请日：2002-03-22
申请人： Tdk Corp , Tdk株式会社
发明人： SUGAWARA TAMOTSU , OIDO ATSUSHI
IPC分类号： G02F1/09 , C30B19/10 , C30B29/28 , G02B27/28
摘要： PROBLEM TO BE SOLVED: To obtain a magnetic garnet material with which a lens conventionally used in an optical isolator can be excluded or a lens having a thickness thinner than that of conventional ones can be used even if any kind of lens is used. SOLUTION: In a growth process of a single crystal film, when the cooling speed is gradually increased, a gradient in the Bi concentration is formed in the single crystal film 44. This gradient in the Bi concentration results in a gradient in the refractive index in the single crystal film 44. It becomes possible to impart a lens function to a Faraday rotor by using the gradient in the refractive index. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003195242A HARD MAGNETIC GARNET MATERIAL, FARADAY ROTATOR, OPTICAL ISOLATOR AND OPTICAL COMMUNICATION SYSTEM 审中-公开
公开(公告)号：JP2003195242A
公开(公告)日：2003-07-09
申请号：JP2001399276
申请日：2001-12-28
申请人： TDK CORP
发明人： SUGAWARA TAMOTSU , OIDO ATSUSHI , YAMAZAWA KAZUTO
IPC分类号： G02F1/09 , G02B27/28
摘要： PROBLEM TO BE SOLVED: To provide a hard magnetic bismuth-substituted rare earth iron garnet material having excellent Faraday rotation ability, temperature characteristics, wavelength characteristics and insertion loss. SOLUTION: The bismuth-substituted rare earth iron garnet material having a chemical composition of (Bi 3-x-y-x Gd x Tb y Yb z )Fe (5-w) M w O 12 (wherein M=one or two or more of Ga, Al, Ge, Sc, In, Si and Ti; 0.5≤x+y+z≤2.5; 0.2≤w≤2.5) is provided with a hard magnetic property and has excellent Faraday rotation ability, temperature characteristics, wavelength characteristics and insertion loss. COPYRIGHT: (C)2003,JPO

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