公开(公告)号：EP2058824B1

公开(公告)日：2013-08-21

申请号：EP07806793.1

申请日：2007-08-30

申请人： The University of Tokyo ,  DOWA Electronics Materials Co., Ltd.

发明人： OHKOSHI, Shin-ichi ,  KUROKI, Shiro ,  SAKURAI, Shunsuke ,  NAMAI, Asuka ,  SATO, Kimitaka ,  SASAKI, Shinya

IPC分类号： H01Q17/00 ,  H05K9/00

CPC分类号： H05K9/0075 ,  B82Y30/00 ,  C01G49/0018 ,  C01G49/0045 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/42 ,  C04B35/26 ,  C04B35/62807 ,  C04B35/62813 ,  C04B35/62823 ,  C04B35/62886 ,  C04B2235/3217 ,  C04B2235/3274 ,  C04B2235/3286 ,  C04B2235/5454 ,  H01F1/344

公开(公告)号：EP2165975B1

公开(公告)日：2013-07-17

申请号：EP08764894.5

申请日：2008-05-30

申请人： The University of Tokyo ,  DOWA Electronics Materials Co., Ltd.

发明人： OHKOSHI, Shin-ichi ,  SAKURAI, Shunsuke ,  YORINAGA, Takenori ,  MATSUMOTO, Kazuyuki ,  SASAKI, Shinya

IPC分类号： C01G49/00 ,  C01G51/00 ,  H01F1/00 ,  H01F1/37

CPC分类号： C01G53/006 ,  B82Y30/00 ,  C01G23/002 ,  C01G45/006 ,  C01G49/0018 ,  C01G49/009 ,  C01G51/006 ,  C01P2002/52 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/42 ,  C04B35/2658 ,  C04B35/2666 ,  C04B35/62807 ,  C04B35/6281 ,  C04B35/62823 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3274 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/5454 ,  C04B2235/5481 ,  H01F1/344 ,  H01F1/37 ,  H01Q17/00

公开(公告)号：EP2165975A1

公开(公告)日：2010-03-24

申请号：EP08764894.5

申请日：2008-05-30

申请人： The University of Tokyo ,  DOWA Electronics Materials Co., Ltd.

发明人： OHKOSHI, Shin-ichi ,  SAKURAI, Shunsuke ,  YORINAGA, Takenori ,  MATSUMOTO, Kazuyuki ,  SASAKI, Shinya

IPC分类号： C01G49/00 ,  C01G51/00 ,  H01F1/00 ,  H01F1/37

CPC分类号： C01G53/006 ,  B82Y30/00 ,  C01G23/002 ,  C01G45/006 ,  C01G49/0018 ,  C01G49/009 ,  C01G51/006 ,  C01P2002/52 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/42 ,  C04B35/2658 ,  C04B35/2666 ,  C04B35/62807 ,  C04B35/6281 ,  C04B35/62823 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3274 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/5454 ,  C04B2235/5481 ,  H01F1/344 ,  H01F1/37 ,  H01Q17/00

摘要： Disclosed is a magnetic material having high Hc and and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ε-A x B y Fe 2-x-y O 3 or ε-A x B y C z Fe 2-x-y-z O 3 (wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0 2 O 3 as a main phase.

摘要翻译： 公开了具有高Hc和高居里点的磁性材料，其能够控制这种磁性，而不需要稀有或昂贵的原料。 具体公开了由以下通式表示的磁性氧化铁颗粒构成的磁性材料：μ-A×B y Fe 2-xy O 3或μ-A×B y C z Fe 2-xyz O 3 （其中A，B和C各自表示不含Fe并且彼此不同的金属，满足0

公开(公告)号：EP2003094A2

公开(公告)日：2008-12-17

申请号：EP07740945.6

申请日：2007-03-28

申请人： The University of Tokyo ,  DOWA Electronics Materials Co., Ltd.

发明人： OHKOSHI, Shin-ichi ,  HASHIMOTO, Kazuhito ,  SAKURAI, Shunsuke ,  KUROKI, Shiro ,  SATO, Kimitaka ,  SASAKI, Shinya

IPC分类号： C01G49/00 ,  C04B35/622 ,  G11B5/706 ,  H01F1/11 ,  H01F10/22

CPC分类号： G11B5/70642 ,  C01G49/0018 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2006/42 ,  C04B35/26 ,  C04B35/62807 ,  C04B2235/3274 ,  C04B2235/3286 ,  C04B2235/76 ,  G11B5/712 ,  G11B5/714 ,  H01F1/11

摘要： Disclosed is a magnetic material comprising a crystal of ε-Ga x Fe 2-x O 3 (wherein 0 3+ ion sites of an ε-Fe 2 O 3 crystal with Ga 3+ ions and having X-ray diffraction peaks corresponding to the crystal structure of ε-Fe 2 O 3 . The coercive force of the magnetic material lowers in accordance with the Ga content thereof, and the saturation magnetization thereof has a maximum value.

摘要翻译： 公开了一种磁性材料，其包含通过用Ga 3取代μ-Fe 2 O 3晶体的Ga 3+离子部分的一部分而制备的μ-Ga x Fe 2-x O 3晶体（其中0

公开(公告)号：EP2374759B1

公开(公告)日：2016-02-17

申请号：EP09830342.3

申请日：2009-11-26

申请人： The University of Tokyo

发明人： OHKOSHI, Shin-ichi ,  MATSUDA, Tomoyuki ,  TSUNOBUCHI, Yoshihide ,  HASHIMOTO, Kazuhito ,  TOKORO, Hiroko

IPC分类号： C01G23/04 ,  H01L21/8247 ,  H01L27/115 ,  H01L29/788 ,  H01L29/792

CPC分类号： C01G23/04 ,  B82Y10/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  G11B5/70626 ,  G11B2007/24306 ,  G11B2007/2432 ,  H01L21/28273 ,  H01L21/28282 ,  Y10T428/25 ,  Y10T428/2982

公开(公告)号：EP2447965A1

公开(公告)日：2012-05-02

申请号：EP10792171.0

申请日：2010-06-24

申请人： The University of Tokyo

发明人： OHKOSHI, Shin-ichi ,  NAMAI, Asuka ,  TAKAMI, Kazuyuki ,  TOMITA, Koutaro

IPC分类号： H01F41/16 ,  C01G49/00 ,  C09D5/23 ,  C09D7/12 ,  C09D201/00 ,  G11B5/706 ,  G11B5/845 ,  H01F10/22

CPC分类号： G11B5/845 ,  C01G49/00 ,  C01G49/06 ,  C01P2002/52 ,  C01P2004/04 ,  C01P2004/10 ,  C01P2006/22 ,  C01P2006/42 ,  C08K3/22 ,  C09D5/38 ,  C09D7/61 ,  G11B5/70642 ,  H01F10/22 ,  H01F41/24 ,  Y10T428/2982

摘要： The present invention provides a process for production of a magnetic thin film which has insulation properties, serves as a permanent magnet, and has improved residual magnetization in comparison with prior arts, the magnetic thin film, and a magnetic material. When a magnetic thin film 3 is formed, an external magnetic field with a predetermined intensity is applied to a coating liquid containing magnetic particles containing epsilon-type iron-oxide-based compounds which have insulation properties and which serve as a permanent magnet, and the coating liquid is let cured in order to form the magnetic thin film 3. Accordingly, the magnetic particles containing the epsilon-type iron-oxide-based compounds can be fixed while being oriented regularly in a magnetization direction. This realizes the process for production of the magnetic thin film 3 which has insulation properties and which serve as a permanent magnet, the magnetic thin film 3, and a magnetic material 1.

摘要翻译： 本发明提供了用于产生磁性薄膜，该薄膜具有绝缘性的处理，作为永久磁铁，并且具有改善的剩余磁化强度与现有技术中，磁性薄膜，以及磁性材料的比较。 当磁性薄膜3形成，磁铁的外部磁场与预定强度应用于包含含有具有绝缘性，并且用作永久ε-型氧化铁系化合物的磁性粒子的涂布液，和所述 涂布液固化让为了形成磁性薄膜3。因此，通过含有ε型氧化铁系化合物的磁性颗粒可以同时在一个磁化方向规则取向被固定。 这实现了用于生产磁性薄膜3，其具有绝缘性，并且用作永久磁铁，磁性薄膜3和磁材料的过程。1

公开(公告)号：EP2374759A1

公开(公告)日：2011-10-12

申请号：EP09830342.3

申请日：2009-11-26

申请人： The University of Tokyo

发明人： OHKOSHI, Shin-ichi ,  MATSUDA, Tomoyuki ,  TSUNOBUCHI, Yoshihide ,  HASHIMOTO, Kazuhito ,  TOKORO, Hiroko

IPC分类号： C01G23/04 ,  H01L21/8247 ,  H01L27/115 ,  H01L29/788 ,  H01L29/792

CPC分类号： C01G23/04 ,  B82Y10/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  G11B5/70626 ,  G11B2007/24306 ,  G11B2007/2432 ,  H01L21/28273 ,  H01L21/28282 ,  Y10T428/25 ,  Y10T428/2982

摘要： There are provided titanium oxide particles capable of manifesting an unprecedented property, a manufacturing method thereof and a magnetic memory as well as a charge storage type memory employing the titanium oxide particles. Unlike-conventional bulk bodies phase-transited between nonmagnetic semiconductors and paramagnetic metals around about 460K, provided are titanium oxide particles 3 capable of manifesting an unprecedented property that Ti 3 O 5 particles do not undergo phase transitions at room temperature and allow a paramagnetic metal property thereof to be consistently maintained in any temperature range.

摘要翻译： 提供能够表现出前所未有的性质的氧化钛颗粒，其制造方法和磁存储器以及使用氧化钛颗粒的电荷存储型存储器。 不同于在约460K之间在非磁性半导体和顺磁性金属之间相转移的常规体本体，提供能够表现出前所未有的性能的氧化钛颗粒3，Ti 3 O 5颗粒在室温下不会发生相变，并允许顺磁金属性质 以保持在任何温度范围内。

公开(公告)号：EP4020506A1

公开(公告)日：2022-06-29

申请号：EP20855143.2

申请日：2020-07-30

申请人： The University of Tokyo ,  TOKYO OHKA KOGYO CO., LTD.

发明人： OHKOSHI, Shin-ichi ,  NAMAI, Asuka ,  YOSHIKIYO, Marie ,  HARA, Masayuki ,  ASAI, Takahiro

IPC分类号： H01F1/117 ,  H05K9/00 ,  B32B7/025

摘要： The present invention provides: a radio wave absorber film which is thin and exhibits excellent radio wave absorption performance; and a method for producing this radio wave absorber film. According to the present invention, a radio wave absorber film formed on a base material layer contains a magnetic body and a binder resin in a radio wave absorption layer; and an aromatic ester-urethane copolymer is used as the binder resin. The glass transition temperature of the binder resin is preferably 100°C or less, and more preferably 0°C or less. The magnetic body is preferably at least one substance that is selected from the group consisting of ε-iron oxide, a barium ferrite magnetic body and a strontium ferrite magnetic body.

公开(公告)号：EP3806597A1

公开(公告)日：2021-04-14

申请号：EP19815745.5

申请日：2019-05-30

申请人： The University of Tokyo ,  TOKYO OHKA KOGYO CO., LTD.

发明人： OHKOSHI, Shin-ichi ,  NAMAI, Asuka ,  YOSHIKIYO, Marie ,  ASAI, Takahiro ,  KUWAHARA, Masaru

IPC分类号： H05K9/00 ,  B32B15/04 ,  C01G49/00 ,  H01F1/34 ,  H01F1/37

摘要： Provided are: a radio wave-absorbing laminate film in which both the top surface and the bottom surface have superior transmission attenuation properties and reflection attenuation capabilities in extremely high-frequency wave bands and higher, and exhibit excellent radio wave absorption properties even when designed to be extremely thin; a production method for the film; and an element that contains the film. A radio wave-absorbing laminate film having radio wave-absorbing layers, wherein the radio wave-absorbing laminate film comprises a center layer, two substrate layers, and two radio wave-absorbing layers, the center layer containing at least one metal layer, and the two substrate layers being laminated on both surfaces of the center layer. With regard to each of the two substrate layers, the radio wave-absorbing layer is laminated on the surface opposite to the center layer,
and, the two substrate layers may be the same or different, the two radio wave-absorbing layers may be the same or different, and at least one of the radio wave-absorbing layers contains a magnetic body.

公开(公告)号：EP2573048A1

公开(公告)日：2013-03-27

申请号：EP11783353.3

申请日：2011-04-15

申请人： The University of Tokyo

发明人： OHKOSHI, Shin-ichi ,  TOKORO, Hiroko ,  HAKOE, Fumiyoshi ,  TSUNOBUCHI, Yoshihide ,  HASHIMOTO, Kazuhito

IPC分类号： C01G23/04 ,  H01L21/8247 ,  H01L27/115 ,  H01L29/788 ,  H01L29/792

CPC分类号： C01G23/04 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01G23/043 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/40 ,  C01P2006/42 ,  C09C1/36 ,  C09C1/3607 ,  H01L21/28273 ,  H01L43/10

摘要： A titanium oxide particle that can develop non-conventional and novel physical properties, a method for manufacturing the same, and a magnetic memory, an optical information recording medium, and a charge accumulation type memory using the same are provided. A silica-coated titanium hydroxide compound particle is directly produced through a sol-gel technique and not through a reverse micelle technique, and the silica-coated titanium hydroxide compound particle is subjected to a calcination process. Hence, a titanium oxide particle 1 can be provided which can develop non-conventional and novel physical properties such that it does not perform phase transition at a room temperature and a Ti 3 O 5 particle body can always maintain the characteristic as a paramagnetic metal in all temperature ranges unlike conventional bulk bodies that perform phase transition between a non-magnetic semiconductor and a paramagnetic metal at a temperature near about 460 K.

摘要翻译： 的氧化钛粒子确实可以开发非常规和新物理性质，用于制造其的方法，和磁存储器，光学信息记录介质，并提供使用该装置的电荷蓄积型存储器。 二氧化硅涂覆的钛氢氧化物粒子是通过溶胶 - 凝胶技术，而不是通过反向胶束法直接产生，并且二氧化硅涂覆的钛氢氧化物粒子进行煅烧过程。 因此，可以提供颗粒1钛氧化物可以开发研究也不会在室温下和Ti进行相变的非传统的和新物理性质3 O 5粒子本体可以始终保持特性作为顺磁性金属中 所有温度范围内与传统的块体做在温度接近约460 K.执行非磁性半导体和一个顺磁性金属之间的相变