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1. 发明授权

US06881497B2 ‘Thermal spring’ magnetic recording media for writing using magnetic and thermal gradients 失效
标题翻译： “热弹簧”磁记录介质，使用磁性和热梯度进行写入
公开(公告)号：US06881497B2
公开(公告)日：2005-04-19
申请号：US10714177
申请日：2003-11-14
申请人： Kevin Robert Coffey , Jan-Ulrich Thiele , Dieter Klaus Weller
发明人： Kevin Robert Coffey , Jan-Ulrich Thiele , Dieter Klaus Weller
IPC分类号： G11B5/00 , G11B5/012 , G11B5/127 , G11B5/39 , G11B5/66 , G11B5/74 , G11B5/82
CPC分类号： G11B5/82 , G11B5/00 , G11B5/012 , G11B5/127 , G11B5/3967 , G11B5/66 , G11B5/74 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , Y10T428/12646 , Y10T428/12861 , Y10T428/12931 , Y10T428/12986 , Y10T428/24942 , Y10T428/24975 , Y10T428/265
摘要： A thermal spring magnetic medium is provided having first and second stacks providing two exchange coupled ferromagnetic layers having different Curie temperatures. The first stack has a high magneto-crystalline anisotropy, a relatively low saturation magnetization and a low Curie temperature. The second stack has a relatively low magneto-crystalline anisotropy, a high saturation magnetization and a high Curie temperature. Preferably the first stack includes an alloy of Fe—Pt or Co—Pt, and the second stack includes an allow of Co—Pt or Co—Pd. A disk drive system having the novel medium is also provided.
摘要翻译：提供了具有第一和第二堆叠的热弹簧磁介质，其提供具有不同居里温度的两个交换耦合的铁磁层。第一堆叠具有高磁晶各向异性，相对较低的饱和磁化强度和较低的居里温度。第二堆叠具有相对低的磁结晶各向异性，高饱和磁化强度和高居里温度。优选地，第一堆叠包括Fe-Pt或Co-Pt的合金，并且第二堆叠包括允许Co-Pt或Co-Pd。还提供了具有新型介质的磁盘驱动器系统。

2. 发明授权

US06950260B2 Thermally assisted magnetic recording system and method of writing using magnetic and thermal gradients 有权
标题翻译：热辅助磁记录系统和使用磁和热梯度的写入方法
公开(公告)号：US06950260B2
公开(公告)日：2005-09-27
申请号：US09874673
申请日：2001-06-04
申请人： Kevin Robert Coffey , Robert Edward Fontana, Jr. , Jan-Ulrich Thiele
发明人： Kevin Robert Coffey , Robert Edward Fontana, Jr. , Jan-Ulrich Thiele
IPC分类号： G11B5/02 , G11B5/55 , G11B5/596 , G11B27/36
CPC分类号： G11B5/02 , G11B5/5521 , G11B5/59683
摘要： A magnetic recording system is provided having a write head employing a combination of magnetic write field gradient and thermal gradient to write data on a ‘thermal spring’ magnetic recording media. The write head comprises a magnetic element using a write current to induce a magnetic write field at the magnetic media and a thermal element using a very small aperture laser to heat a portion of the media. The thermal spring magnetic media comprises [comprises] first and second stacks providing two exchange coupled ferromagnetic layers having different Curie temperatures [The first stack has a high magneto-crystalline anisotropy, a relatively low saturation magnetization and a low Curie temperature.] [The second stack has a relatively low magneto-crystalline anisotropy, a high saturation magnetization and a high Curie temperature.] The magnetic field gradient and the thermal gradient are arranged to substantially overlap at the trailing edge of the heated portion of the magnetic media allowing data at high density with high thermal stability to be recorded on the rapidly cooling thermal spring magnetic recording media.
摘要翻译：提供磁记录系统，其具有采用磁写场梯度和热梯度的组合的写头，以在“温度弹簧”磁记录介质上写入数据。写头包括使用写入电流以在磁性介质上引起磁写入场的磁性元件，以及使用非常小的孔径激光器加热介质的一部分的热元件。热弹簧磁介质包括[包括]第一和第二堆叠，提供具有不同居里温度的两个交换耦合铁磁层[第一堆叠具有高磁晶各向异性，相对低的饱和磁化强度和低居里温度]。[第二堆叠具有相对较低的磁晶各向异性，高饱和磁化强度和高居里温度。]磁场梯度和热梯度被布置成在磁介质的加热部分的后缘处基本上重叠，允许高数据具有高热稳定性的密度被记录在快速冷却的热弹簧磁记录介质上。

3. 发明授权

US06982843B2 Assembly comprising adjustable heat flux mechanism for thermally assisted/thermal information processing and control 失效
公开(公告)号：US06982843B2
公开(公告)日：2006-01-03
申请号：US09931834
申请日：2001-08-17
申请人： Kevin Robert Coffey , Hendrik F. Hamann , Jan-Ulrich Thiele , Hemantha Kumar Wickramasinghe
发明人： Kevin Robert Coffey , Hendrik F. Hamann , Jan-Ulrich Thiele , Hemantha Kumar Wickramasinghe
IPC分类号： G11B5/02
CPC分类号： G11B5/00 , G11B5/127 , G11B13/045 , G11B33/14 , G11B2005/0005 , G11B2005/0021
摘要： The invention discloses an assembly comprising an adjustable heat flux mechanism suitable for thermally assisted information processing and control. In one embodiment, the assembly discloses a directed energy source for heating a media, a temperature sensing element for measuring/inferring the temperature of the media, and a controller for mutually positioning the energy output by the directed energy source and the media for thereby controlling the power directed to the media in accordance with the temperature sensing element.

4. 发明授权

US07006336B2 Magnetic head having a heater circuit for thermally-assisted writing 失效
公开(公告)号：US07006336B2
公开(公告)日：2006-02-28
申请号：US10213230
申请日：2002-08-06
申请人： Kevin Robert Coffey , Jeffrey Scott Lille , Andrew Ching Tam
发明人： Kevin Robert Coffey , Jeffrey Scott Lille , Andrew Ching Tam
IPC分类号： G11B5/127
CPC分类号： G11B5/3967 , G11B5/012 , G11B5/127 , G11B5/17 , G11B5/313 , G11B5/3133 , G11B5/314 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic head for thermally-assisted writing of data to a disk is disclosed. In one illustrative example, the magnetic head includes a write head element and a heating element which is a resistive infared radiator. The heating element is coupled to at least one via pad which is exposed on an outer surface of the magnetic head. This via pad may be the same pad utilized for the write head element or for a read sensor. The heating element is formed beneath or within the pole tip such that it is able to transfer heat to a portion of the disk before the write head element can write data to it Advantageously, the heater facilitates the writing of data to high coercivity media.

5. 发明授权

US5989728A Thin film magnetic recording medium having high coercivity 失效
标题翻译：具有高矫顽力的薄膜磁记录介质
公开(公告)号：US5989728A
公开(公告)日：1999-11-23
申请号：US662910
申请日：1996-06-12
申请人： Kevin Robert Coffey , James Kent Howard , Michael Andrew Parker
发明人： Kevin Robert Coffey , James Kent Howard , Michael Andrew Parker
IPC分类号： G11B5/00 , G11B5/39 , G11B5/62 , G11B5/64 , G11B5/84 , G11B5/851
CPC分类号： G11B5/653 , G11B5/00 , G11B5/3948 , G11B5/62 , G11B5/656 , G11B5/84 , G11B5/851 , Y10S428/90 , Y10T428/12465 , Y10T428/12528
摘要： An alloy of tetragonal polycrystalline structure acts as a thin film magnetic medium. The medium can be for recording or sensing magnetic transitions representative of data and is of a thickness less than about 200 .ANG., and has a coercivity in excess of about 2000 Oe. The film is in the L1o phase which is suitable for longitudinal recording and can be constituted by an alloy selected from cobalt or iron together with platinum or palladium. The film is formed by sputtering from a target and thereafter annealing the thin film and at a temperature in excess of about 500.degree. C.
摘要翻译：四方晶体结构的合金作为薄膜磁介质。该介质可以用于记录或感测代表数据的磁性跃迁，并且具有小于约200安培的厚度，并且具有超过约2000Oe的矫顽力。该膜处于适于纵向记录的L1o相中，并且可以由选自钴或铁以及铂或钯的合金构成。该薄膜通过溅射从靶材形成，然后对薄膜进行退火并在超过约500℃的温度下进行。

6. 发明授权

US07170714B2 Magnetic head having a heater circuit for thermally-assisted writing 失效
标题翻译：具有用于热辅助写入的加热器电路的磁头
公开(公告)号：US07170714B2
公开(公告)日：2007-01-30
申请号：US11253494
申请日：2005-10-17
申请人： Kevin Robert Coffey , Jeffrey Scott Lille , Andrew Ching Tam
发明人： Kevin Robert Coffey , Jeffrey Scott Lille , Andrew Ching Tam
IPC分类号： G11B5/127
CPC分类号： G11B5/3967 , G11B5/012 , G11B5/127 , G11B5/17 , G11B5/313 , G11B5/3133 , G11B5/314 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic head for thermally-assisted writing of data to a disk is disclosed. In one illustrative example, the magnetic head includes a write head element and a heating element which is a resistive infared radiator. The heating element is coupled to at least one via pad which is exposed on an outer surface of the magnetic head. This via pad may be the same pad utilized for the write head element or for a read sensor. The heating element is formed beneath or within the pole tip such that it is able to transfer heat to a portion of the disk before the write head element can write data to it Advantageously, the heater facilitates the writing of data to high coercivity media.
摘要翻译：公开了一种用于将数据热辅助写入磁盘的磁头。在一个说明性示例中，磁头包括写头元件和作为电阻式加注散热器的加热元件。加热元件耦合到暴露在磁头的外表面上的至少一个通孔焊盘。该通孔焊盘可以是用于写入头元件或读取传感器的相同的焊盘。加热元件形成在极尖之下或之内，使得其能够在写头元件能够向其写入数据之前将热量传递到盘的一部分。有利地，加热器有助于将数据写入高矫顽力介质。

7. 发明授权

US08228159B1 Nanocomposite semiconducting material with reduced resistivity 有权
标题翻译：具有降低电阻率的纳米复合半导体材料
公开(公告)号：US08228159B1
公开(公告)日：2012-07-24
申请号：US12253413
申请日：2008-10-17
申请人： Kevin Robert Coffey , Vu Huynh Lam , Edward Dein , Andrew Peter Warren , Glenn Boreman , Guy V. Zummo , Wilson Caba
发明人： Kevin Robert Coffey , Vu Huynh Lam , Edward Dein , Andrew Peter Warren , Glenn Boreman , Guy V. Zummo , Wilson Caba
IPC分类号： H01C7/10
CPC分类号： H01C7/008 , H01C7/006
摘要： A resistor, fabricating method, and thermal sensor material for resistors that incorporate high Temperature Coefficient of Resistance (TCR) values and low resistivity for better sensitivity in infrared imaging applications are disclosed. Amorphous oxide thin films, preferably oxides of vanadium (VOx), were deposited on thermally grown silicon dioxide by direct current (DC) magnetron co-sputtering of noble metals (gold and platinum) in a controlled argon/oxygen atmosphere. The ideal conditions for preparing an amorphous vanadium oxide/noble metal thin film are identified. TCR and resistivity results showed that the additions of gold (Au) and platinum (Pt) into VOx reduced the resistivity. However, only gold (Au) was found to improve TCR value. Reducing the amount of oxygen in the thin film, further improved the ratio between TCR and resistivity. Infrared detection and imaging devices can be greatly improved with a “drop-in” amorphous vanadium oxide/noble metal thin film of the present invention.
摘要翻译：公开了一种用于电阻器的电阻器，制造方法和热传感器材料，其包含高温度电阻系数（TCR）值和低电阻率，用于在红外成像应用中更好的灵敏度。通过直接（DC）磁控管共溅射贵金属（金和铂）在受控的氩/氧气氛中，将非晶氧化物薄膜（优选钒的氧化物（VO x））沉积在热生长的二氧化硅上。鉴定了制备无定形氧化钒/贵金属薄膜的理想条件。 TCR和电阻率结果表明，向VOx中添加金（Au）和铂（Pt）降低了电阻率。然而，仅发现金（Au）可以提高TCR值。减少薄膜中的氧气量，进一步提高了TCR和电阻率之间的比例。本发明的“滴入”无定形氧化钒/贵金属薄膜可以大大改善红外检测和成像装置。

8. 发明授权

US6016241A Magnetoresistive sensor utilizing a granular magnetoresistive layer 失效
标题翻译：利用粒状磁阻层的磁阻传感器
公开(公告)号：US6016241A
公开(公告)日：2000-01-18
申请号：US445479
申请日：1995-05-22
申请人： Kevin Robert Coffey , James Kent Howard , Todd Lanier Hylton , Michael Andrew Parker
发明人： Kevin Robert Coffey , James Kent Howard , Todd Lanier Hylton , Michael Andrew Parker
IPC分类号： C23C14/14 , G01R33/09 , G11B5/39 , H01F10/00 , H01F10/32 , H01L43/08 , H01L43/10
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/09 , G01R33/093 , G11B5/3903 , H01F10/007 , H01F10/3231 , H01L43/10 , G11B2005/3996
摘要： A heterogeneous thin film structure including a discontinuous layer of ferromagnetic material deposited on an insulating substrate and overcoated with a layer of nonmagnetic electrically conductive material exhibits giant magnetoresistance in saturation fields on the order of 350 Oersteds. A layer of ferromagnetic material is deposited on a heated insulating substrate by high vacuum evaporation techniques to form a layer of isolated ferromagnetic particles and overcoated with a nonmagnetic conductive material to form a plurality of ferromagnetic particles embedded in a nonmagnetic conductive matrix. As the ferromagnetic and nonmagnetic materials are deposited separately, it is not required that the two materials be immiscible and subsequent annealing is not required to induce phase separation.
摘要翻译：包括沉积在绝缘衬底上并用非磁性导电材料层涂覆的铁磁材料不连续层的异质薄膜结构在350奥斯特数量级的饱和场中表现出巨大的磁阻。通过高真空蒸发技术将一层铁磁材料沉积在加热的绝缘基板上，以形成隔离的铁磁颗粒层，并用非磁性导电材料涂覆以形成嵌入在非磁性导电基体中的多个铁磁性颗粒。由于铁磁和非磁性材料分开沉积，所以不要求两种材料是不混溶的，并且不需要随后的退火以诱导相分离。

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