公开(公告)号：US09472227B2

公开(公告)日：2016-10-18

申请号：US13166002

申请日：2011-06-22

Applicant: Hi Shin ,  Iwao Okamoto

Inventor： Hi Shin ,  Iwao Okamoto

IPC: G11B5/73 ,  G11B5/738

CPC classification number: G11B5/7325 ,  G11B5/738

Abstract: [Problem] An object is to provide a perpendicular magnetic recording medium that can realize both improvement in crystal orientation and refinement of crystal grain size and can achieve a higher recording density and a higher SN ratio, and a method of manufacturing the same.[Solution] A perpendicular magnetic recording medium 100 of the present invention is a perpendicular magnetic recording medium 100 having a base plate 100, and a laminate film including a first ground layer 150a provided on the base plate 100, a second ground layer 150b provided on the first ground layer 150a, and a main recording layer 160 provided on the second ground layer 150b and containing a magnetic material having a granular structure, wherein the magnetic material which constitutes the main recording layer 160 contains a CoCrPt alloy, and a material which constitutes the second ground layer 150b contains an Ru—Co oxide alloy.

Abstract translation: [解决方案]本发明的垂直磁记录介质100是具有基板100的垂直磁记录介质100，以及包括设置在基板100上的第一接地层150a的层压膜，设置在基板100上的第二接地层150b 第一接地层150a和设置在第二接地层150b上并包含具有粒状结构的磁性材料的主记录层160，其中构成主记录层160的磁性材料包含CoCrPt合金，以及构成 第二接地层150b含有Ru-Co氧化物合金。

公开(公告)号：US20050136291A1

公开(公告)日：2005-06-23

申请号：US10975936

申请日：2004-10-28

Applicant: Iwao Okamoto ,  Hisashi Umeda

Inventor： Iwao Okamoto ,  Hisashi Umeda

IPC: G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/738 ,  G11B5/72

CPC classification number: G11B5/66 ,  G11B5/656

Abstract: A magnetic recording medium is provided with first and second ferromagnetic layers which are exchange-coupled via a first nonmagnetic coupling layer and have mutually parallel magnetizations. The second ferromagnetic layer and a magnetic layer are exchange-coupled via a second nonmagnetic coupling layer and have magnetizations which are mutually antiparallel. The first and second ferromagnetic layers and the magnetic layer respectively have dynamic coercivities Hc1′, Hc2′ and Hc3′ which satisfy a relationship Hc1′

Abstract translation: 磁记录介质设置有第一和第二铁磁层，其经由第一非磁性耦合层交换耦合并且具有相互平行的磁化。 第二铁磁层和磁性层通过第二非磁性耦合层进行交换耦合，并具有相互反平行的磁化。 第一和第二铁磁层和磁性层分别具有在记录磁场的切换时间区域中满足关系Hc 1'

公开(公告)号：US06753101B1

公开(公告)日：2004-06-22

申请号：US09588850

申请日：2000-06-06

Applicant: E. Noel Abarra ,  Iwao Okamoto ,  Yoshifumi Mizoshita ,  Yuki Yoshida

Inventor： E. Noel Abarra ,  Iwao Okamoto ,  Yoshifumi Mizoshita ,  Yuki Yoshida

IPC: G11B566

CPC classification number: G11B5/66 ,  G11B5/74 ,  G11B5/82 ,  G11B2005/0002 ,  Y10S428/90 ,  Y10T428/24942 ,  Y10T428/265

Abstract: A magnetic recording medium is provided with at least one exchange layer structure, and a magnetic layer formed on the exchange layer structure. The exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic layer and under the magnetic layer.

Abstract translation: 磁记录介质具有至少一个交换层结构和形成在交换层结构上的磁性层。 交换层结构包括铁磁层和设置在铁磁层上和磁层下面的非磁性耦合层。

公开(公告)号：US06740383B2

公开(公告)日：2004-05-25

申请号：US09275578

申请日：1999-03-24

Applicant: Masayoshi Shinohara ,  Kenji Sato ,  Yuki Yoshida ,  Iwao Okamoto ,  Yasuji Ikeda ,  Kiyoshi Yamaguchi

Inventor： Masayoshi Shinohara ,  Kenji Sato ,  Yuki Yoshida ,  Iwao Okamoto ,  Yasuji Ikeda ,  Kiyoshi Yamaguchi

IPC: G11B573

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/4886 ,  G11B5/656 ,  G11B5/72 ,  G11B5/7325 ,  G11B2005/3996 ,  Y10T428/24355 ,  Y10T428/24975

Abstract: A magnetic recording medium and a magnetic disk device using the same. The magnetic recording medium comprising a nonmagnetic substrate having applied thereon, through two or more chromium-based underlayers, a magnetic recording layer having a circumferential direction of easy magnetization and containing cobalt as a principal component thereof, and also containing chromium and platinum in combination with tantalum or tantalum and niobium. Using the magnetic recording medium, a reproducing output and S/N ratio can be increased without causing an increase in noise.

Abstract translation: 磁记录介质及使用其的磁盘装置。 该磁记录介质包括通过两个或多个铬基底层施加在其上的非磁性基底，具有容易磁化的圆周方向并且含有钴作为其主要成分的磁记录层，并且还含有铬和铂与 钽或钽和铌。 使用磁记录介质，可以增加再现输出和S / N比，而不会增加噪声。

公开(公告)号：US06677051B1

公开(公告)日：2004-01-13

申请号：US09648097

申请日：2000-08-25

Applicant: B. Ramamurthy Acharya ,  Iwao Okamoto

Inventor： B. Ramamurthy Acharya ,  Iwao Okamoto

IPC: G11B566

CPC classification number: G11B5/656 ,  G11B5/66 ,  Y10T428/12646 ,  Y10T428/12861 ,  Y10T428/12931 ,  Y10T428/26

Abstract: A magnetic recording medium is constructed to include a substrate, and a magnetic layer disposed above the substrate, wherein the magnetic layer has an initial layer on a side closer to the substrate and a final layer on a side opposite from the substrate with respect to the initial layer. The initial layer is made of a CoCrB-based alloy having a thickness of 1 to 10 nm, and the final layer is made of a Co-based alloy having a thickness of 5 to 30 nm.

Abstract translation: 磁记录介质被构造成包括基板和设置在基板上方的磁性层，其中磁性层在靠近基板的一侧具有初始层，并且相对于基板在与基板相反的一侧具有最终层 初始层。 初始层由厚度为1〜10nm的CoCrB系合金构成，最终层由厚度为5〜30nm的Co系合金构成。

公开(公告)号：US06645646B1

公开(公告)日：2003-11-11

申请号：US09587842

申请日：2000-06-06

Applicant: Hisashi Umeda ,  E. Noel Abarra ,  Iwao Okamoto ,  Yoshifumi Mizoshita

Inventor： Hisashi Umeda ,  E. Noel Abarra ,  Iwao Okamoto ,  Yoshifumi Mizoshita

IPC: G11B566

CPC classification number: G11B5/66 ,  G11B5/74 ,  G11B5/82 ,  G11B2005/0002 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/12861 ,  Y10T428/2495 ,  Y10T428/265

Abstract: A magnetic recording medium is constructed to include at least one exchange layer structure and a magnetic layer provided on the exchange layer structure, where the exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic layer, and a magnetic bonding layer provided between the ferromagnetic layer and the non-magnetic coupling layer and/or between the non-magnetic coupling layer and the magnetic layer, wherein the magnetic bonding layer has a magnetization direction parallel to the ferromagnetic layer and the magnetic layer.

Abstract translation: 磁记录介质被构造成包括至少一个交换层结构和设置在交换层结构上的磁性层，其中交换层结构包括强磁性层和设置在铁磁层上的非磁性耦合层，以及磁性层 粘结层设置在铁磁层和非磁性耦合层之间和/或非磁性耦合层与磁性层之间，其中磁性结合层具有平行于铁磁性层和磁性层的磁化方向。

公开(公告)号：US06534204B1

公开(公告)日：2003-03-18

申请号：US09405725

申请日：1999-09-24

Applicant: Hideyuki Akimoto ,  Yuki Yoshida ,  Kenji Sato ,  Iwao Okamoto

Inventor： Hideyuki Akimoto ,  Yuki Yoshida ,  Kenji Sato ,  Iwao Okamoto

IPC: G11B566

CPC classification number: G11B5/7325 ,  G11B5/66 ,  Y10S428/90

Abstract: There is provided a magnetic storage medium capable of recording information at high recording density and also regenerating the information with a high quality of signal (high S/Nm), and in addition contributing to the elongation of a life span of the recorded information. The magnetic storage medium comprises a non-magnetic substrate, a plurality of magnetic recording layers of ferromagnetism formed on the non-magnetic substrate, and a dividing layer of antiferromagnetism for dividing said plurality of magnetic recording layers from one another through intervening between the magnetic recording layer-to-layer.

Abstract translation: 提供了能够以高记录密度记录信息并且还以高质量信号（高S / Nm）再生信息的磁存储介质，并且还有助于延长记录信息的使用寿命。 磁存储介质包括非磁性衬底，形成在非磁性衬底上的多个磁性磁记录层，以及用于通过介于磁记录之间的方式将所述多个磁记录层彼此分开的反铁磁分隔层 层到层。

公开(公告)号：US5164349A

公开(公告)日：1992-11-17

申请号：US714624

申请日：1991-06-13

Applicant: Toshitaka Fujii ,  Atsushi Kajima ,  Kyoji Ohdan ,  Ryoji Sugise ,  Iwao Okamoto

Inventor： Toshitaka Fujii ,  Atsushi Kajima ,  Kyoji Ohdan ,  Ryoji Sugise ,  Iwao Okamoto

IPC: C04B35/01 ,  C23C14/08 ,  H01F1/40 ,  H01L43/10

CPC classification number: H01L43/10 ,  C04B35/01 ,  C23C14/08 ,  H01F1/40 ,  H01F1/407

Abstract: An electromagnetic effect material comprising xA-yB-zC-wD-.alpha.0 series oxide ceramics, in which A and B represent one or more of element selected from the combination of elements represented by the general formula ABO.sub.3 and capable of forming a perovskite structure material exhibiting a ferromagnetic or antiferromagnetic property, C and D represent one or more of elements selected from the combination of elements represented by the general formula CDO.sub.3 and capable of forming a perovskite structure material exhibiting a ferroelectric, antiferroelectric or piezo-electric effect, with a proviso of excluding a case in which A and C are identical and B and D are identical to each other and a case in which A is Bi and B is Fe, x, y, z and w represent the ratio for the elements A, B, C and D, respectively, x+y+z+w=1, 0.01

Abstract translation: 一种包含xA-yB-zC-wD-α0系氧化物陶瓷的电磁效应材料，其中A和B表示选自由通式ABO 3表示的元素的组合中的一种或多种元素，并且能够形成钙钛矿结构材料 表现出铁磁性或反铁磁性，C和D表示选自由通式CDO 3表示的元素的组合的元素中的一种或多种，​​并且能够形成具有铁电，反铁电或压电效应的钙钛矿结构材料，其条件是 排除A和C相同并且B和D彼此相同的情况以及A是Bi和B的情况是Fe，x，y，z和w表示元素A，B， C和D分别为x + y + z + w =​​ 1，0.01

公开(公告)号：US07230079B2

公开(公告)日：2007-06-12

申请号：US10525567

申请日：2003-08-26

Applicant: Iwao Okamoto ,  Norie Arai ,  Keizo Kohno ,  Masashi Kurimoto ,  Osamu Sano

Inventor： Iwao Okamoto ,  Norie Arai ,  Keizo Kohno ,  Masashi Kurimoto ,  Osamu Sano

IPC: C07K1/00

CPC classification number: A61K35/644 ,  A61K8/64 ,  A61K8/988 ,  A61K38/00 ,  A61Q19/00 ,  C07K14/43572 ,  A61K2300/00

Abstract: It is intended to provide an anti-allergic agent, which efficaciously relieves symptoms accompanying an allergic disease without causing any serious side effect. This object is achieved by providing an anti-allergic agent which contains, as an effective ingredient, proteins collected from royal jelly or purified royal jelly, or royal jelly or purified royal jelly containing the proteins.

Abstract translation: 旨在提供一种抗过敏剂，其有效地缓解伴随过敏性疾病的症状，而不引起任何严重的副作用。 该目的通过提供一种抗过敏剂来实现，该抗过敏剂含有从蜂王浆或纯化蜂王浆或蜂王浆或含有蛋白质的纯化蜂王浆中收集的蛋白质作为有效成分。

公开(公告)号：US20050053803A1

公开(公告)日：2005-03-10

申请号：US10850988

申请日：2004-05-21

Applicant: Hisashi Umeda ,  Iwao Okamoto

Inventor： Hisashi Umeda ,  Iwao Okamoto

IPC: G11B5/09 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/738 ,  B32B15/18 ,  G11B3/70

CPC classification number: G11B5/66 ,  G11B5/09 ,  Y10T428/12882 ,  Y10T428/12937 ,  Y10T428/265

Abstract: A magnetic recording medium is provided with a first magnetic layer, a nonmagnetic coupling layer provided on the first magnetic layer, and a second magnetic layer provided on the nonmagnetic coupling layer. The first and second magnetic layers are exchange-coupled, and have magnetization directions which are mutually parallel in a state where no external magnetic field is applied thereto, and the first magnetic layer switches the magnetization direction thereof before the second magnetic layer in response to a recording magnetic field which switches the magnetization directions of the first and second magnetic layers.

Abstract translation: 磁记录介质设置有第一磁性层，设置在第一磁性层上的非磁性耦合层和设置在非磁性耦合层上的第二磁性层。 第一和第二磁性层是交换耦合的，并且在不施加外部磁场的状态下具有相互平行的磁化方向，并且第一磁性层响应于第二磁性层在第二磁性层之前切换其磁化方向 记录切换第一和第二磁性层的磁化方向的磁场。