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1. 发明专利

JP2000265235A HYDROGEN STORAGE ALLOY, ITS MANUFACTURE, AND SECONDARY BATTERY 失效
公开(公告)号：JP2000265235A
公开(公告)日：2000-09-26
申请号：JP7009399
申请日：1999-03-16
申请人： TDK CORP
发明人： MATSUKAWA ATSUHITO , ODAKAWA YOSHIMOTO , FUKUNO AKIRA , YAMASHITA SHINICHI
IPC分类号： H01M4/38 , B22F9/04 , C22C1/00 , C22C27/02 , C22F1/00 , C22F1/02 , C22F1/18 , H01M8/04 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To obtain plateau pressure within a practical range, to improve hydrogen occluding/releasing property, to lower initial activation temperature, to facilitate pulverization, and to improve compactibility by providing a specific composition consisting of V, Ti, Ni, and Zr. SOLUTION: The alloy has a composition represented by general formula VxTiaNibZrc (where the symbols (x), (a), (b), and (c) are atomic %; ratios of respective constituent elements and 85 =100 deg.C, and performing holding for 1-2 hr. Then, the alloy is pulverized. It is desirable to regulate the average particle size after pulverization to 20 to 60 μm in the case where the alloy is compacted in the subsequent stage and used for a cathode of a secondary battery.

2. 发明专利

JPH08166282A VIBRATION SENSING SENSOR 失效
公开(公告)号：JPH08166282A
公开(公告)日：1996-06-25
申请号：JP7972894
申请日：1994-03-26
申请人： TDK CORP , TOKYO GAS CO LTD
发明人： SUGIMOTO SATOSHI , ODAKAWA YOSHIMOTO
IPC分类号： G01H1/00 , G01H11/02
摘要： PURPOSE: To realize a hanging means with a simple structure and which allows three-dimensional sliding movement with high degree of freedom. CONSTITUTION: A vibration sensing part 1 is stored in the inside of a case 2. A hanging means 4 has a spherical body 41 and a receiving part 42 and hangs the vibration sensing part 1 in the case 2. The spherical body 41 and the receiving part 42 are installed in the vibration sensing part 1 and the case 2 separately. The sperical body 41 is wrapped by the receiving part 42 to provide mutually movable contact faces between them.

3. 发明专利

JPS61112867A Magnetic fluid shaft seal 失效
标题翻译：磁流体轴封
公开(公告)号：JPS61112867A
公开(公告)日：1986-05-30
申请号：JP23447784
申请日：1984-11-07
申请人： Tdk Corp
发明人： ODAKAWA YOSHIMOTO , HARADA HIROSHI , HIROSE YUKIO
IPC分类号： F16J15/43
CPC分类号： F16J15/43
摘要： PURPOSE:To reduce lowering of saturating magnetization of metal magnetic fluid by contacting magnetic fluid retained in a clearance of external system side to inert gas. CONSTITUTION:Plural magnetic circuits made up by ring type permanent magnet 4 and ring type magnetic yoke 4 are arranged on an outer periphery of a shaft 2. Metal magnetic fluid of relatively high saturating magnetization is used as a magnetic fluid to be retained in a clearance. But the metal magnetic fluid is inferior in anti-corrosion ability, then the magnetic fluid retained in the outermost clearance 5 which will contact the external system is contacted to inert gas. As the inert gas, nitrogen, argon, helium etc. or mixture air of these are used.
摘要翻译：目的：通过将保持在外部系统侧的间隙中的磁性流体接触惰性气体来减少金属磁性流体饱和磁化的降低。构成：由环形永磁体4和环形磁轭4构成的多个磁路布置在轴2的外周上。使用相对高的饱和磁化强度的金属磁性流体作为磁性流体保持在间隙。但金属磁性流体的防腐能力较差，而与外部系统接触的最外隙5中残留的磁性流体与惰性气体接触。作为惰性气体，使用氮，氩，氦等或这些的混合空气。

4. 发明专利

JPH0949755A VIBRATION SENSOR 失效
公开(公告)号：JPH0949755A
公开(公告)日：1997-02-18
申请号：JP20369895
申请日：1995-08-09
申请人： TDK CORP , TOKYO GAS CO LTD
发明人： SUGIMOTO SATOSHI , ODAKAWA YOSHIMOTO , NUKUI KAZUMITSU , KATO HIDEO
IPC分类号： G01V1/18 , G01H1/00 , G01H11/02
摘要： PROBLEM TO BE SOLVED: To avoid the characteristic change caused by inclination in the all direction by obtaining the operating characteristics conforming to the vibrating frequency to acceleration characteristics of a seismic wave with a simple structure. SOLUTION: Hoisting means 4 has a spherical body 41 and a receiver 42 separately mounted at a vibration sensing unit 1 and an outer case 2. The body 41 is enclosed by the receiver 42 so that a movable contact surfaces are formed therebetween, and the unit 1 is hoisted from the case 2. Damping fluid 3 is contained in the case 2. The unit 1 is partly disposed in the fluid 3, and damped by the fluid 3. A movable element 11 has a magnet 111 disposed in a nonmagnetic case 13, supported by magnetic fluid 112, and floated on the inner surface 132 of the bottom 131 of the case 13. A magnetic sensitive element 12 senses the leakage magnetic flux of the magnet 111. The case 13 is substantially in plane with the inner surface 132 of the bottom 131.

5. 发明专利

JPH0224509A INCLINATION SENSOR 失效
公开(公告)号：JPH0224509A
公开(公告)日：1990-01-26
申请号：JP17254188
申请日：1988-07-13
申请人： TDK CORP
发明人： ODAKAWA YOSHIMOTO , YANAGISAWA YASUSHI
IPC分类号： G01C9/18 , G01C9/00 , G01C9/06 , G01C9/10 , G01P15/105 , G01P15/135 , H01H35/02
摘要： PURPOSE:To expedite a response speed to inclination and to reduce the amount of magnetic fluid by covering a permanent magnet housed in a case with a magnetic cap having a specified weight so as to cover the most parts of the upper surface and the side surface ranging to the vicinity of the bottom surface of the permanent magnet. CONSTITUTION:A cap 15 which is made to cover a permanent magnet 12 has a shape which covers the most parts of the upper surface and the side surface to the vicinity of the bottom surface. A weight is added to the permanent magnet 13 and a desired weight W is obtained. When a case is inclined by alpha, the permanent magnet 13 tends to move along the bottom surface. At this time, the component of force w.sinalpha becomes large. When the component of force becomes large, various forces which block the movement, i.e. attracting force with the reed of a reed switch 17, viscosity of magnetic fluid, surface tension and the like, can be readily overcome. Therefore, the inclination of the case can immediately respond thereto and sensitivity is improved.

6. 发明专利

JPS63148135A PRESSURE SENSOR 失效
公开(公告)号：JPS63148135A
公开(公告)日：1988-06-21
申请号：JP29450886
申请日：1986-12-10
申请人： TDK CORP
发明人： ODAKAWA YOSHIMOTO , YANAGISAWA YASUSHI , IMAIZUMI HIROSHI
IPC分类号： G01L7/18
摘要： PURPOSE:To detect pressure in a high - low pressure range as an electric signal with simple structure by allowing an electro-magnetic coil to detect variation in the liquid level of magnetic fluid which is displaced following up a bellows extending and contracting by receiving pressure. CONSTITUTION:The bellows contains the magnetic fluid 2 consisting of magnetic fine particles of magnetite, etc., which is smaller in volume than its internal capacity, and a detection coil 3 is wound outside a detection pipe part 102 at the tip. When pressure is applied through a pressure intake 42, the bellows 1 expands by, for example, DELTAd and then the liquid level of the magnetic fluid 42 is displaced by DELTAd and then the liquid level of the magnetic fluid 42 is displaced by DELTAh accordingly. This displacement varies the inductance of the detection coil 3 and the variation is converted into the electric signal and detected. For the purpose, the spring constant of the bellows 1 is selected properly to detect pressure in a low - high pressure range as the electric signal.

7. 发明专利

JPS62177411A TILT SENSOR 失效
公开(公告)号：JPS62177411A
公开(公告)日：1987-08-04
申请号：JP1986986
申请日：1986-01-31
申请人： TDK CORP
发明人： ODAKAWA YOSHIMOTO , NARUMIYA YOSHIKAZU , YANAGISAWA YASUSHI
IPC分类号： G01C9/06 , G01C9/20
摘要： PURPOSE:To obtain a sensor which easily reads a tilt angle and as a result, is simple in a circuit design of a signal process and moreover, has good sensitivity by winding a coil round an annular container wherein a magnetic fluid is enclosed in a part of its annular hollow part. CONSTITUTION:The magnetic fluid 2 is filled up by about 50% of the volume of the annular hollow part in the circular annular container 1 and the coil 31 is wound round the container. In this case, the coil 31 is wound on one side of the right side and the left side with respect to a reference line S of tilt angle measurement and the number of windings is made about 100-1,000 turns. Further, in order to improve detecting accuracy, two coils can be wound symmetrically as the coils 31 and 32 as necessary. Accordingly, the coils 31 and 32 are wound round the annular container 1 in the part of which the fluid 2 is enclosed and the tilt angle is measured by the variation of inductance. In this way, the variation of the inductance and the tilt angle is made the linear relation in a wide range and as a result, the sensor which processes a read signal easily and is also simple in its circuit design and moreover, has good sensitivity is obtained.

8. 发明专利

JP2001247927A VANADIUM BASE SOLID SOLUTION TYPE HYDROGEN STORAGE ALLOY 失效
公开(公告)号：JP2001247927A
公开(公告)日：2001-09-14
申请号：JP2000059871
申请日：2000-03-06
申请人： TDK CORP
发明人： MATSUKAWA ATSUHITO , FUKUNO AKIRA , ODAKAWA YOSHIMOTO
IPC分类号： C22F1/11 , C22C1/00 , C22C1/02 , C22C14/00 , C22C27/02 , C22C27/06 , C22C30/00 , C22F1/00 , C22F1/18 , H01M4/38
摘要： PROBLEM TO BE SOLVED: To provide a hydrogen storage alloy by which the plateau region can be flattened without depending on the content of V or adding other elements and to provide a producing method therefor. SOLUTION: In this V base solid solution type hydrogen storage alloy, a V base solid solution type alloy expressed by the general formula of VxTiyCrz (wherein, as to atomic ratios (x), (y) and (z), 0

9. 发明专利

JP2000265234A HYDROGEN STORAGE ALLOY, ITS MANUFACTURE, AND SECONDARY BATTERY 失效
公开(公告)号：JP2000265234A
公开(公告)日：2000-09-26
申请号：JP7087399
申请日：1999-03-16
申请人： TDK CORP
发明人： MATSUKAWA ATSUHITO , ODAKAWA YOSHIMOTO , FUKUNO AKIRA , YAMASHITA SHINICHI
IPC分类号： H01M4/38 , C22C1/00 , C22C27/02 , H01M10/24
摘要： PROBLEM TO BE SOLVED: To obtain plateau pressure within a practical range, to improve hydrogen occluding/releasing property, to lower initial activation temperature, to facilitate pulverization, and to improve compactibility by providing a specific composition consisting of V, Ti, Cr, and Zr. SOLUTION: The alloy has a composition represented by general formula VxTiaCrbZrc (where the symbols (x), (a), (b), and (c) are atomic %; ratios of respective constituent elements and 70 =100 deg.C, and performing holding for 1-2 hr. Then, the alloy is pulverized. It is desirable to regulate the average particle size after pulverization to 20 to 60 μm in the case where the alloy is compacted in the subsequent stage and used for a cathode of a secondary battery.

10. 发明专利

JPH0462413A INCLINATION SENSOR 失效
公开(公告)号：JPH0462413A
公开(公告)日：1992-02-27
申请号：JP17195190
申请日：1990-06-29
申请人： TDK CORP
发明人： ODAKAWA YOSHIMOTO
IPC分类号： G01C9/06 , G01C9/18
摘要： PURPOSE:To detect a slanting direction by arranging a magnetic reacting switch so that the switch does not reacts to a magnet at a zero position which is the position of the magnet when a case does not slants and reacts to the magnet at a distance from the zero position. CONSTITUTION:When the case 1 does not slants, the magnetic reacting switch 4 is at a distance l from the magnet 2 at the zero position O1 and does not react. If the case 1 slants as shown by an arrow a1 about the zero position O1, the switch 4 slants as shown by the arrow a1 together with the case 1. The magnet 2 which is supported by magnetic fluid 3 is in a stationary state through the operation of the gravitational force (g) regardless of the inclination of the case 1. Consequently, the switch 4 reacts to the magnetic field produced by the magnet 2 through the inclination of the case 1 in the direction shown by the arrow (a), so that the inclination is detected.

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