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1. 发明专利

JP2001296174A OIL LEVEL METER HAVING SPECIFIC GRAVITY DETECTION FUNCTION 失效
公开(公告)号：JP2001296174A
公开(公告)日：2001-10-26
申请号：JP2000113959
申请日：2000-04-14
申请人： TOKIN CERAMICS CORP
发明人： YANO SADAFUMI
IPC分类号： G01F23/76 , G01F23/62 , G01N9/12
摘要： PROBLEM TO BE SOLVED: To detect a change in the specific gravity of a liquid and a change in liquid surface for easily matching with the specific gravity of the liquid, for measuring the specific gravity of a float. SOLUTION: This oil level meter having a specific gravity detection function is provided with a reed switch 1 that incorporates a contact, a stem 2 that incorporates the lead switch 1, and a float 5 that incorporates a magnet 3, that travels along the stem 2 and drives the reed switch 1 and has a projection 4 made of a foamed resin for adjusting specific gravity.

2. 发明专利

JP2001084864A REED SWITCH 失效
公开(公告)号：JP2001084864A
公开(公告)日：2001-03-30
申请号：JP26549799
申请日：1999-09-20
申请人： TOKIN CERAMICS CORP
发明人： YANO SADAFUMI
IPC分类号： H01H11/00 , H01H36/00
摘要： PROBLEM TO BE SOLVED: To provide reed switches uniform in characteristics, especially uniform in dynamic sensitivity, an important characteristic, that is, uniform in a gap between magnetic bodies. SOLUTION: This reed switch 10 includes a pair of magnetic bodies 11 each having a contact part 11a at one end, and a sealing member 12 for sealing therein contact-part-side portions of the pair of magnetic bodies 11 with the contact parts 11a confronting each other. A glass tube is used as the sealing member 12. The glass tube 12 is made of low-melting point glass that softens under the condition that working temperature is not higher than the Curie temperature of the magnetic bodies 11 when the contact-part-side portions are sealed in the glass tube 12.

3. 发明专利

JP2001023487A INCLINATION SWITCH 失效
公开(公告)号：JP2001023487A
公开(公告)日：2001-01-26
申请号：JP19595099
申请日：1999-07-09
申请人： TOKIN CERAMICS CORP
发明人： YANO SADAFUMI
IPC分类号： G01C9/06 , G01C9/10 , H01H35/02 , H01H35/14
摘要： PROBLEM TO BE SOLVED: To provide an inclination switch without generating wear and capable of sensing inclination only in a certain restricted direction. SOLUTION: An inclination switch is composed of a case 2 made of non- magnetic substance, a reed switch 3 installed inside the case 2, a permanent magnet 4 installed inside the case 2 in such a way as opposing to the reed switch 3, a swash plate 5 made of non-magnetic substance, having a slope 52, and installed inside the case 2 in such a way as interposed between the reed switch 3 and permanent magnet 4, and a rod-shaped magnetic member 6 installed on the swash plate 5 in such a way as rolling and positioned as specified by means of the slope 52 when it is in the horizontal situation.

4. 发明专利

JP2003302325A Hydrometer 审中-公开
标题翻译： HYDROMETER
公开(公告)号：JP2003302325A
公开(公告)日：2003-10-24
申请号：JP2002105700
申请日：2002-04-08
申请人： Japan Storage Battery Co Ltd , Nec Tokin Ceramics Corp , Nec Tokin Corp , Necトーキンセラミクス株式会社 , Necトーキン株式会社 , 日本電池株式会社
发明人： YANO SADAFUMI , YAMAGUCHI MASAHIRO
IPC分类号： G01N9/18
摘要： PROBLEM TO BE SOLVED: To provide a hydrometer capable of detecting a variation of specific weight always stably, high precisely, and surely even the liquid to be measured on specific weight is moving and the liquid level is varied.
SOLUTION: This hydrometer is provided with an improved float 3 which is formed with a nonmagnetic material and in which a pair of magnets 4 are separately built in as a magnetic field imparting means. The float 3 is constituted that most of which is sunk in the liquid to be measured on specific weight i.e., in the normal state battery liquid wherein a center of gravity line M2 which is existing on a plane perpendicular to a stem 1 extending vertical direction, is positioned lower than the center line M1 existing on a plane specified by half value (h/2) of height value, further the clearance d is set regarding to the height size of the float 3 in a range of 1/8-1/4. Thereby the float 3 moves smoothly along the stem 1 even the battery is used on a slope.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供能够始终稳定地，高精度地检测比重的变化的比重计，并且确实地，即使在比重下待测量的液体移动并且液面变化。解决方案：这种比重计设置有改进的浮子3，其由非磁性材料形成，并且其中一对磁体4分别构建为磁场施加装置。浮子3的构成在于，其大部分以特定重量沉没在待测量的液体中，即在正常状态的电池液体中，其中存在于垂直于竖直方向延伸的杆1的平面上的重心线M2，位于低于由高度值的半值（h / 2）指定的平面上存在的中心线M1，进一步将浮标3的高度尺寸的间隙d设定在1 / 8-1 / 4。因此，即使在斜坡上使用电池，浮子3也沿着杆1平稳移动。版权所有（C）2004，JPO

5. 发明专利

JP2003214928A LIQUID LEVEL GAUGE 审中-公开
公开(公告)号：JP2003214928A
公开(公告)日：2003-07-30
申请号：JP2002011085
申请日：2002-01-21
申请人： NEC TOKIN CORP , NEC TOKIN CERAMICS CORP , JAPAN STORAGE BATTERY CO LTD
发明人： YANO SADAFUMI , YAMAGUCHI MASAHIRO
IPC分类号： G01F23/62
摘要： PROBLEM TO BE SOLVED: To provide a liquid level gauge for simply and at low cost applicable to the detecting of a plurality of liquid levels. SOLUTION: A reed switch 14 opens or closes its contact points corresponding to the position variation of a magnet 15 accompanied by the vertical movement of a nonmagnetic float 16 against a stem 13 stretched vertically. The stem is equipped with a circuit board 20 having a vertically-long empty space 21 where the reed switch is arranged. Furthermore, on the stem, stopper 17, 17' for regulating the upper and lower positions of the float and a plurality of grooves vertically separated for stopping the stoppers are provided. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2002048814A SHOCK SENSOR 失效
公开(公告)号：JP2002048814A
公开(公告)日：2002-02-15
申请号：JP2000235910
申请日：2000-08-03
申请人： TOKIN CERAMICS CORP
发明人： YANO SADAFUMI
IPC分类号： G01P15/135 , B60R21/16 , H01H35/14 , B60R21/32
摘要： PROBLEM TO BE SOLVED: To provide a shock sensor which has a proper switching operation property according to the magnitude of an acceleration due to a shock and whose stability and reliability are enhanced in the fundamental operation of an air bag system which can control the expansion of an air bag without any malfunction. SOLUTION: In the shock sensor 13, a pair of reed switches 6a, 6b whose constitutions are mutually identical and which comprise independent signal output systems are arranged in positions in which their contact parts become a closed state so as to correspond to accelerations of different magnitudes, and their sensor sensitivities are different. When a weak acceleration is generated due to the shock, a ring-shaped magnet 7 is moved by overcoming an urging force by a spring 8, it is brought close to only the reed switch 6a, and only the contact part of the reed switch 6a is set to a closed state. When a strong acceleration is generated due to the shock, the ring-shaped magnet 7 is brought close to the reed switches 6a, 6b, and the contact parts of the reed switches 6a, 6b are set to a closed state.

7. 发明专利

JP2001167674A IMPACT SENSOR 失效
公开(公告)号：JP2001167674A
公开(公告)日：2001-06-22
申请号：JP34962599
申请日：1999-12-09
申请人： TOKIN CERAMICS CORP
发明人： MORIZAKI SHIGEYUKI , YANO SADAFUMI
IPC分类号： G01P15/135 , H01H35/14
摘要： PROBLEM TO BE SOLVED: To provide an impact sensor of highly airtight structure that prevents the magnet from corroding while providing operational stability independently of the sealed magnet material or operational environment. SOLUTION: In the impact sensor, for a tube 2b surrounding the outer circumferential surface and a back stopper 2a setting an initial position of the magnet 4 which gives a magnetic force to a contact portion of the lead switch 1 being integrally formed within a case 2 for a sensor when inserting and mounting a front stopper 6 between the tube 2b and the case 2 after receiving the magnet 4 and a spring 3, it coats and fills a adhesive 7 into notch parts 6a, 2b', respectively formed in a edge portion being a contact portion of the case 2 with the tube 2b in the front stopper 6 or an edge portion being a contact portion with a front stopper 6 in the tube 2b, and makes adhesive and airtight contact places of the front stopper 6, the case 2 and the tube 2b, respectively with the adhesive 7.

8. 发明专利

JP2001160343A IMPACT SENSOR 失效
公开(公告)号：JP2001160343A
公开(公告)日：2001-06-12
申请号：JP34271299
申请日：1999-12-02
申请人： TOKIN CERAMICS CORP
发明人： KOMAMURA HIDEO , YANO SADAFUMI
IPC分类号： G01P15/135 , H01H35/14
摘要： PROBLEM TO BE SOLVED: To provide an impact sensor that can fully give magnetic force to make the contact portion of a reed switch into the closed state from a magnet moving with acceleration and that has a structure stabilizing the motion at detection of the acceleration. SOLUTION: Because a front stopper 7 has a collision face to lock the end face of a magnet 4 having the top face of projections 7a, 7b with different heights, repulsive forces in the opposite directions along the rotating direction of a magnet 40 produced direction in terms of the step direction make the magnet 40 rotate, when the magnet 4 is moved to the limit of the moving range of the front stopper 7 side to hit the top face of projections 7a, 7b, and this causes the stagnation of the magnet 4 in the vicinity if the front stopper 7, to enable to delay the time that the magnet 4 is pushed back toward the other side, resulting in elongation of time of giving magnetic force to turn the contact point of the reed switch in the closed ON state.

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