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1. 发明授权

US5320569A Method of making a spark plug 失效
标题翻译：制作火花塞的方法
公开(公告)号：US5320569A
公开(公告)日：1994-06-14
申请号：US96435
申请日：1993-07-26
申请人： Takafumi Oshima , Mamoru Musasa , Tsutomu Okayama , Kazuya Iwata
发明人： Takafumi Oshima , Mamoru Musasa , Tsutomu Okayama , Kazuya Iwata
IPC分类号： H01T21/02
CPC分类号： H01T21/02
摘要： In a method of making a spark plug, a recess is provided on an end surface of the electrode blank metal. A straight neck portion is provided around the recess, and forming a tapered surface connecting from the straight neck portion toward an opposite side of the recess. A disc-shaped tip is placed in the recess of the electrode blank metal. The disc-shaped tip is pressed against an inner bottom of the recess in the axial direction of the electrode blank metal, and a laser beam welding is applied to an outer wall of the recess substantially all through its circumferential length by rotating the electrode blank metal.
摘要翻译：在制造火花塞的方法中，在电极坯料的端面设有凹部。在所述凹部周围设置有直的颈部，并且形成从所述直颈部向所述凹部的相对侧连接的锥面。盘形尖端放置在电极坯料的凹槽中。盘形尖端沿着电极坯料的轴向压在凹部的内底部，并且通过旋转电极坯料金属将激光束焊接基本上全部通过其周向长度施加到凹部的外壁上。

2. 发明授权

US5273474A Method of manufacturing a center electrode for a spark plug 失效
标题翻译：火花塞中心电极的制造方法
公开(公告)号：US5273474A
公开(公告)日：1993-12-28
申请号：US979287
申请日：1992-11-20
申请人： Takafumi Oshima , Tsutomu Okayama
发明人： Takafumi Oshima , Tsutomu Okayama
IPC分类号： B23K15/00 , B23K26/00 , B23K26/32 , H01T13/16 , H01T13/20 , H01T13/39 , H01T21/02
CPC分类号： H01T21/02 , H01T13/39
摘要： In a method of manufacturing a center electrode for a spark plug, a composite column is provided by enclosing a heat-conductor core into a nickel-alloyed clad by means of plastic working. A front end of the nickel-alloyed clad is severed to define a severing and surface with which an axial bore is provided to reach to a front end of the heat-conductor core. A straight neck portion around the axial bore is provided by diametrically reducing the front end of the nickel-alloyed clad. A firing tip made of precious metal is placed in the axial bore. A front end of the firing tip extends beyond the front end of the straight neck portion, while a rear end of the firing tip comes to be in thermally transferable contact with the front end of the heat-conductor core. An outer surface of the firing tip is bonded to an inner surface of the axial bore by means of laser beam welding or electron beam welding.

3. 发明授权

US5440198A Spark plug having a noble metal firing tip bonded to a front end of a center electrode 失效
标题翻译：火花塞具有结合到中心电极的前端的贵金属点火尖端
公开(公告)号：US5440198A
公开(公告)日：1995-08-08
申请号：US70800
申请日：1993-06-03
申请人： Takafumi Oshima , Tsutomu Okayama
发明人： Takafumi Oshima , Tsutomu Okayama
IPC分类号： H01T13/20 , H01T13/39 , H01T21/02
CPC分类号： H01T13/39 , H01T21/02
摘要： In a spark plug, a nickel-alloyed center electrode has a front end which has a constricted end forming a spark gap with a ground electrode by way of a noble metal firing tip. The noble metal firing tip is secured to a front end surface of the constricted end by applying a laser beam welding to an interface between the constricted end and the firing tip all through their circumferential length so as to form a wedge-shaped welding solidification portion.
摘要翻译：在火花塞中，镍合金中心电极具有前端，该前端具有通过贵金属烧制尖端与接地电极形成火花隙的收缩端。通过将激光束焊接到收缩端和点火尖端之间的界面，通过其圆周长度将贵金属烧制尖端固定到收缩端的前端表面，以形成楔形焊接固化部分。

4. 发明申请

US20070115056A1 Operational amplifier and scanning electron microscope using the same 有权
标题翻译：运算放大器和扫描电子显微镜使用相同
公开(公告)号：US20070115056A1
公开(公告)日：2007-05-24
申请号：US11602288
申请日：2006-11-21
申请人： Tsutomu Okayama
发明人： Tsutomu Okayama
IPC分类号： H03F3/45
CPC分类号： H03F3/3066 , H03F3/301 , H03F3/45089 , H03F2200/301 , H03F2203/30015 , H03F2203/30027 , H03F2203/45166 , H03F2203/45168
摘要： An operational amplifier and a scanning electron microscope which are capable of dealing with high voltage and large current, and which allow implementation of stable and precise amplification, the operational amplifier having a first-stage amplification unit including a differential pair, a base-grounded amplification circuit, and an active load, the base-grounded amplification circuit being cascode-connected to the differential pair a second-stage amplification unit including an inverter having an emitter follower circuit and a constant-current load circuit, and a third-stage amplification unit including a source follower circuit or an emitter follower circuit.
摘要翻译：运算放大器和扫描电子显微镜能够处理高电压和大电流，并且允许实现稳定和精确的放大，运算放大器具有包括差分对的第一级放大单元，基极接地放大器电路和有源负载，所述基极接地放大电路与所述差分对并联，所述第二级放大单元包括具有射极跟随器电路和恒流负载电路的反相器，以及第三级放大单元包括源极跟随器电路或射极跟随器电路。

5. 发明授权

US5869921A Spark plug for internal combustion engine having platinum and iridium alloyed emissive tips 失效
标题翻译：具有铂和铱合金发射尖端的内燃机的火花塞
公开(公告)号：US5869921A
公开(公告)日：1999-02-09
申请号：US848681
申请日：1997-04-29
申请人： Wataru Matsutani , Tsutomu Okayama
发明人： Wataru Matsutani , Tsutomu Okayama
IPC分类号： C22C5/04 , H01T13/39 , H01J13/20
CPC分类号： H01T13/39
摘要： In a spark plug for an internal combustion engine, a spark gap is defined between an insulated sparking portion and a grounded sparking portion. At least one of the insulated sparking portion and the grounded sparking portion is made of a molten alloy composed of (a) 99 to 80 wt. % of Ir and (b) 1 to 20 wt. % of Pt. The insulated sparking portion can be a center electrode or a discharge chip attached to a free end of the center electrode, while the grounded sparking portion can be a ground electrode or a discharge chip attached to a free end of the ground electrode.
摘要翻译：在用于内燃机的火花塞中，在绝缘火花部分和接地的火花部分之间限定火花隙。绝缘火花部分和接地的火花部分中的至少一个由（a）99-80重量％的熔融合金制成。 Ir的比例和（b）1〜20wt。％的Pt。绝缘火花部分可以是附接到中心电极的自由端的中心电极或放电芯片，而接地的火花部分可以是接地电极或附着到接地电极的自由端的放电芯片。

6. 发明授权

US5347193A Spark plug having an erosion resistant tip 失效
标题翻译：火花塞具有抗侵蚀尖端
公开(公告)号：US5347193A
公开(公告)日：1994-09-13
申请号：US960113
申请日：1992-10-13
申请人： Takafumi Oshima , Kazuya Iwata , Tsutomu Okayama
发明人： Takafumi Oshima , Kazuya Iwata , Tsutomu Okayama
IPC分类号： H01T13/16 , H01T13/20 , H01T13/39
CPC分类号： H01T13/39
摘要： In a center electrode for a spark plug, the center electrode is made of a heat-conductor core cladded with a nickel-alloyed metal. A recess is provided on the front end surface of the nickel-alloyed matrix and the columnar tip is made of a precious metal and fit in the recess in such a manner that a front end of the tip protracts from the recess. The outer surface of the tip is welded to an inner surface of the recess. The dimensional relationship of the components of the spark plug A, B, C, D, E, F and G is as follows: 0.3 mm.ltoreq.A.ltoreq.0.8 mm, 1.2A.ltoreq.B.ltoreq.3A, 0.1 mm.ltoreq.(C-A)/2.ltoreq.0.5 mm, D.ltoreq.(C-A)/2, E.ltoreq.B/4, 0 mm.ltoreq.F.ltoreq.0.5 mm and A/5.ltoreq.G.ltoreq.A/2, where A: a diameter of the columnar tip, B: a length of the columnar tip, C: a diameter of a front end of the nickel-alloyed metal, D: a length of a front end of the nickel-alloyed metal, E: a length of the front end of the tip which is protracted from the recess, F: a distance between a rear end of the tip and a front end of the heat-conductor core, G: a distance of a welding portion penetrated from the outer surface of the tip into the inner surface of the recess.
摘要翻译：在用于火花塞的中心电极中，中心电极由包含镍合金金属的导热芯组成。在镍合金基体的前端面上设有凹部，柱状末端由贵金属制成，并以这样的方式配合在凹部内，使得尖端的前端从凹部伸出。尖端的外表面焊接到凹部的内表面。火花塞A，B，C，D，E，F和G的部件的尺寸关系如下：0.3mm A = 0.8mm，1.2A

7. 发明授权

US4507600A Two-terminal current regulator 失效
标题翻译：双端电流调节器
公开(公告)号：US4507600A
公开(公告)日：1985-03-26
申请号：US481250
申请日：1983-04-01
申请人： Tsutomu Okayama
发明人： Tsutomu Okayama
IPC分类号： G05F1/56
CPC分类号： G05F1/561
摘要： A two-terminal current regulator has a sensing resistor, a reference voltage generator, a current controller, an error amplifier for controlling the current controller such that a voltage drop across the sensing resistor is equalized to a reference voltage generated by the reference voltage generator, and a current distributor for distributing currents to the reference voltage generator, current controller and the error amplifier such that the currents are proportional to a current flowing through the sensing resistor. Thus, a high precision constant current characteristic is attained.
摘要翻译：两端电流调节器具有感测电阻器，参考电压发生器，电流控制器，用于控制电流控制器的误差放大器，使得感测电阻器两端的电压降等于由参考电压发生器产生的参考电压，以及用于向参考电压发生器，电流控制器和误差放大器分配电流的电流分配器，使得电流与流过感测电阻器的电流成比例。因此，获得高精度恒定电流特性。

8. 发明授权

US4173148A Semiconductor strain gauge with temperature compensator 失效
标题翻译：带温度补偿器的半导体应变片
公开(公告)号：US4173148A
公开(公告)日：1979-11-06
申请号：US948778
申请日：1978-10-05
申请人： Kazuji Yamada , Hideo Sato , Tsutomu Okayama , Motohisa Nishihara , Yoshitaka Matsuoka , Katsuya Katohgi , Yasumasa Matsuda , Satoshi Shimada
发明人： Kazuji Yamada , Hideo Sato , Tsutomu Okayama , Motohisa Nishihara , Yoshitaka Matsuoka , Katsuya Katohgi , Yasumasa Matsuda , Satoshi Shimada
IPC分类号： G01L9/04 , G01B7/16 , G01L1/22 , G01L9/00 , H01L23/58 , H01L29/84
CPC分类号： G01B7/18 , G01L1/2281 , G01L1/2293
摘要： A bridge circuit with four arms including semiconductor strain gauge elements has input terminals for coupling a DC power supply with a pair of diagonally opposite junctions of the bridge circuit per se and output terminals coupled with a pair of remaining diagonally opposite junctions. Initial zero-point temperature compensators each are connected in series and in parallel to each of semiconductor strain gauge elements on adjacent two arms of the bridge circuit. Temperature compensators for zero-point shift adjustment are each provided between the adjacent arms closer to each output terminal. A temperature compensator for span adjustment is provided between one of the input terminals and the DC power source. A constant current control unit for feeding a constant current to the bridge circuit is provided between the other input terminal and the DC power supply.
摘要翻译：具有包括半导体应变计元件的四个臂的桥接电路具有用于将直流电源与桥接电路本身的一对斜对置接头连接的输入端子以及与一对剩余的对角线相对的接合部连接的输出端子。初始零点温度补偿器各自与桥式电路的相邻两个臂上的每个半导体应变计元件串联并联。用于零点移位调整的温度补偿器分别设置在靠近每个输出端子的相邻臂之间。在一个输入端子和直流电源之间提供用于量程调节的温度补偿器。在另一个输入端子和直流电源之间设置用于向桥式电路馈送恒定电流的恒定电流控制单元。

9. 发明授权

US07521998B2 Operational amplifier and scanning electron microscope using the same 有权
标题翻译：运算放大器和扫描电子显微镜使用相同
公开(公告)号：US07521998B2
公开(公告)日：2009-04-21
申请号：US11602288
申请日：2006-11-21
申请人： Tsutomu Okayama
发明人： Tsutomu Okayama
IPC分类号： H03F3/45
CPC分类号： H03F3/3066 , H03F3/301 , H03F3/45089 , H03F2200/301 , H03F2203/30015 , H03F2203/30027 , H03F2203/45166 , H03F2203/45168
摘要： An operational amplifier and a scanning electron microscope which are capable of dealing with high voltage and large current, and which allow implementation of stable and precise amplification, the operational amplifier having a first-stage amplification unit including a differential pair, a base-grounded amplification circuit, and an active load, the base-grounded amplification circuit being cascode-connected to the differential pair a second-stage amplification unit including an inverter having an emitter follower circuit and a constant-current load circuit, and a third-stage amplification unit including a source follower circuit or an emitter follower circuit.
摘要翻译：运算放大器和扫描电子显微镜能够处理高电压和大电流，并且允许实现稳定和精确的放大，运算放大器具有包括差分对的第一级放大单元，基极接地放大器电路和有源负载，所述基极接地放大电路与所述差分对并联，所述第二级放大单元包括具有射极跟随器电路和恒流负载电路的反相器，以及第三级放大单元包括源极跟随器电路或射极跟随器电路。

10. 发明授权

US5224026A Alternatable constant current circuit 失效
标题翻译：可交替恒流电路
公开(公告)号：US5224026A
公开(公告)日：1993-06-29
申请号：US901776
申请日：1992-06-22
申请人： Tsutomu Okayama
发明人： Tsutomu Okayama
IPC分类号： A61B5/055 , G01F1/60 , G01R33/20 , G01R33/381 , G05F1/38 , G05F1/563 , H02M3/335 , H02M7/48
CPC分类号： H02M3/33576 , G05F1/38 , G05F1/563 , H02M7/483 , Y10T307/839
摘要： An alternatable constant current circuit is provided which supplies positive and negative polarities of rectangular wave current to an inductive load such as in an exciting circuit of an electromagnetic flowmeter and in a slanted magnetic field system of a nuclear magnetic resonance imaging device at a high current inversion speed and a low power loss, wherein the capacitance of an output capacitor in a switching power source circuit is lowered, the regenerative output voltage of the output capacitor is applied to the inductive load during the current inversion period therein via a polarity inversion circuit, further the load current is controlled by a current control circuit at a predetermined value and the output voltage of the switching power source circuit is also controlled so as to maintain the collector-emitter voltage Vce of a current control transistor in the current control circuit constant, whereby an oscillation is generated in the circuit including the inductive load and the output capacitor during the current inversion to charge the output capacitor to an excessively high voltage and further the output voltage of the output capacitor in the switching power source circuit rises due to a decrease of the collector-emitter voltage Vce thereof to thereby cause an output voltage jump-up of the output capacitor and to hasten the current inversion in the inductive load.
摘要翻译：提供了一种可替换的恒流电路，其提供矩形波电流的正极性和负极性到诸如在电磁流量计的激励电路中的感性负载以及在高电流反转的核磁共振成像器件的倾斜磁场系统中速度和低功率损耗，其中开关电源电路中的输出电容器的电容降低，输出电容器的再生输出电压通过极性反转电路在其当前反转期间内被施加到电感负载负载电流由预定值的电流控制电路控制，开关电源电路的输出电压也被控制，以使电流控制电路中的电流控制晶体管的集电极 - 发射极电压Vce保持恒定，由此在包括感性负载和t的电路中产生振荡他在电流反相期间输出电容器以将输出电容器充电到过高的电压，并且由于集电极 - 发射极电压Vce的降低，开关电源电路中的输出电容器的输出电压进一步上升，从而导致输出输出电容器的电压跳变，并加速电感负载中的电流反转。

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