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41. 发明专利

JPH01202652A OXYGEN CONCENTRATION DETECTOR AND MANUFACTURE OF HEATER THEREFOR 失效
公开(公告)号：JPH01202652A
公开(公告)日：1989-08-15
申请号：JP2713388
申请日：1988-02-08
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： OUCHI SHIRO , ICHIKAWA NORIO
IPC分类号： G01N27/409 , G01N27/00 , G01N27/41
摘要： PURPOSE:To enable measurement of an air/fuel ratio in a wide range, rich to lean, by employing a bar-shaped heater with a recess formed along the length thereof to allow a sufficient supply of an atmospheric air as reference gas with a higher temperature efficiency. CONSTITUTION:A heater with a recess 30 along the length thereof is used to allow measurement of an air/fuel ratio in a wide range, rich to lean with a higher temperature efficiency. In the manufacture of the heater, a raw core material 31 with a recess 30 is prepared with conductor patterns 32a and 32b printed. A raw sheet 33 is prepared with a heater pattern 34 printed having lead portions 35a and 35b. Then, the raw material 31 is wound with the raw sheet 33 in such a manner that the portions 35a and 35b overlap the patterns 32a and 32b while the pattern 34 is kept from overlapping the recess 30. In this manner, the winding of the core material 31 with the sheet 33 can prevent excessive expansion of the core material 31 during the baking thereby allowing the control of the geometry of an outer surface of the heater. Then, a product thus obtained is baked and thereafter, the sheet portion is cut off along the recess 30 of the core material 31 to complete a heater.

42. 发明专利

JP2007074662A Millimeter wave radar system 审中-公开
标题翻译：米勒波雷达系统
公开(公告)号：JP2007074662A
公开(公告)日：2007-03-22
申请号：JP2005262390
申请日：2005-09-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OUCHI SHIRO , SASADA YOSHIYUKI
IPC分类号： H01Q1/52 , G01S7/03 , G01S7/28 , H01Q17/00 , H01Q23/00
摘要： PROBLEM TO BE SOLVED: To provide a millimeter wave radar system which improves detection precision, is made thin and lightweight and improves weather resistance not only by cutting off unwanted radio waves transmitted/received toward an antenna but also by shielding from unwanted radio waves generated from a control device or the like. SOLUTION: The millimeter wave radar system 1 comprises an antenna 12 for transmitting/receiving radio waves, a control circuit 20 for controlling the radio waves, a housing 30 for housing the antenna 12 and the control circuit 20, and a radome 15 covering the antenna 12. The millimeter wave radar system 1 comprises a shielding member 40 for shielding radio waves between the antenna 12 and the control circuit 20. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供提高检测精度的毫米波雷达系统，其薄型且轻便，不仅通过切断向天线发射/接收的不需要的无线电波，而且通过屏蔽不需要的无线电从控制装置等产生的波。解决方案：毫米波雷达系统1包括用于发送/接收无线电波的天线12，用于控制无线电波的控制电路20，用于容纳天线12和控制电路20的壳体30以及天线罩15 覆盖天线12.毫米波雷达系统1包括屏蔽构件40，用于屏蔽天线12和控制电路20之间的无线电波。版权所有（C）2007，JPO＆INPIT

43. 发明专利

JP2001217785A HIGH FREQUENCY COMMUNICATION APPARATUS AND PRODUCING METHOD THEREFOR 失效
公开(公告)号：JP2001217785A
公开(公告)日：2001-08-10
申请号：JP2000027216
申请日：2000-01-31
申请人： HITACHI LTD
发明人： KOSHIZAKA ATSUSHI , OUCHI SHIRO , YOKOYAMA MIZUHO , KAWAHARA KEIJI
IPC分类号： H05K9/00 , H01L23/552 , H01P1/16 , H01P1/211 , H04B1/08 , H04B15/00
摘要： PROBLEM TO BE SOLVED: To reduce unsuitable electromagnetic coupling of electromagnetic waves inside and outside the casing of a communication apparatus, which packages circuit elements or the like comprising a transmitting/receiving circuit inside the casing. SOLUTION: In a structure for preventing interference to the others by cyclically sealing radiation energy from an unwanted radio wave radiation source by forming the projection by cyclic extrusion at a part of a wall comprising the casing at least, the problem of interference, EMC and EMI can be reduced by preventing the interference to the others by locally sealing the unwated radio wave radiation energy inside the casing only by adding a simple cyclic body structure to a part of the casing by extrusion. Without dearading the characteristics of a receiver, mass-production fluctuation or change with the passage of time can be reduced and production costs can be reduced.

44. 发明专利

JPH10267891A EXHAUST GAS COMPONENT SENSOR, MANUFACTURE THEREOF AND USING METHOD THEREOF 失效
公开(公告)号：JPH10267891A
公开(公告)日：1998-10-09
申请号：JP7484197
申请日：1997-03-27
申请人： HITACHI LTD
发明人： UENO SADAYASU , OUCHI SHIRO , NOTO YASUO
IPC分类号： G01N27/409
摘要： PROBLEM TO BE SOLVED: To shorten the rising time of a sensor by forming a porous ceramic insulation film on a zirconia solid electrolyte by spraying while insulating electrically and providing a film-like heater on the insulation film. SOLUTION: A tubular reference electrode 4 is formed on the inner surface of a tubular zirconia solid electrolyte 11 having sealed forward end and detection electrodes 2, 3 are formed on the outer surface thereof and then reference gas components are introduced into the central tubular space 12 of the reference electrode 4. Signals are led out from the detection electrodes 2, 3 through a lead part 7 and a lead wire 9. A porous ceramic insulation film 51 is formed at the forward end part of a zirconia solid electrolyte 11 by spraying, a film-like heater is provided thereon followed by formation of a porous ceramic thermal insulation film 6 on the outer surface thereof by spraying. Alternatively, a diffusion film 5 or a protective film 5 is formed on the outer surface of the detection electrode 2 and a porous ceramic insulation film 52 is formed on the surface of the zirconia solid electrolyte 11 by spraying. According to the method, thermal conductivity is enhanced and the rising time of a sensor can be shortened.

45. 发明专利

JPH06118053A AIR-FUEL RATIO SENSOR 失效
公开(公告)号：JPH06118053A
公开(公告)日：1994-04-28
申请号：JP26842892
申请日：1992-10-07
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SATO KANEMASA , UENO SADAYASU , OUCHI SHIRO , MINAMI NAOKI
IPC分类号： G01N27/409
摘要： PURPOSE:To improve the heat conductivity from a heater to zirconia electrolyte by inserting a heat resisting fibrous material such as glass fiber or a metallic material such as a metal leaf spring between the zirconia solid electrolyte and the heater to fill the space. CONSTITUTION:An inside electrode 3 consisting of platinum is formed on the inside of a bag tube zirconia solid electrolyte (cell) 2 in the detecting part 1 of a sensor, and a platinum outside electrode 4 is similarly formed on the outside. A diffusive film 5 consisting of a magnesia spinel is formed on the outside thereof. Each electrode is drawn to the opened end part of the cell, and drawn by a lead 6 through a drawing electrode part. To the inside of the cell 2, a pipe heater 7 is inserted up to the top end part. The purpose of the heater 7 is to effectively heat the zirconia solid electrolyte inner part 10 corresponding to the effective electrode area part on the outside of the cell 2 in the detecting part as much as possible. Therefore, an elastic heat conductor 12 such as a glass fiber or leaf spring is inserted to the gap part 0.2-0.3mm between the solid electrode (cell) 2 and the heater 7 to fill the space, and heat conductivity is improved.

46. 发明专利

JPH04353756A OXYGEN CONCENTRATION DETECTOR 失效
公开(公告)号：JPH04353756A
公开(公告)日：1992-12-08
申请号：JP12905591
申请日：1991-05-31
申请人： HITACHI LTD
发明人： OUCHI SHIRO
IPC分类号： G01N27/409 , G01N27/41
摘要： PURPOSE:To enable detection of an air-fuel ratio in a wide range from the rich to the lean by providing a recessed part in the upper end face of a detecting element and further by providing a hole in the axial direction in a heater flange attached to a rod-shaped pipe heater. CONSTITUTION:A detecting element 1 of a solid electrolyte has a rod-shaped pipe heater 2 for heating disposed inside and is held in a plug body 4. A heater flange 3 is fixed to the heater 2 by a bonding agent. On the detecting element 1, an outside electrode and a reference electrode of platinum are formed by chemical plating or the like. A recessed part of the upper end face of the detecting element 1 and a hole in the axial direction of the heater flange 3 are provided for supplying the atmosphere which is a reference gas being necessary for measuring a high rich zone. A signal is taken out of a signal lead-out lead 7 in the recessed part of the upper end face of the detecting element 1. In a lean zone, oxygen in a combustion gas is pumped from the outside to the reference side of the detecting element 1 by an oxygen ion conducting operation of the detecting element 1, a current flows simultaneously from the reference side to the outside and an air-fuel ratio is detected linearly in a wide range.

47. 发明专利

JPH01227955A AIR-FUEL RATIO DETECTOR 失效
公开(公告)号：JPH01227955A
公开(公告)日：1989-09-12
申请号：JP5354488
申请日：1988-03-09
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： ICHIKAWA NORIO , UENO SADAYASU , OUCHI SHIRO
IPC分类号： G01N27/12 , G01N27/00 , G01N27/41
摘要： PURPOSE:To obtain a diffusion film having high reliability and high diffusion resistance by using a coarse particle layer and superfine particle layer to constitute the gas diffusion resistance layer of the air-fuel ratio detector formed by using an oxygen ion-conductive zirconia solid electrolyte element. CONSTITUTION:Platinum electrodes 24, 25 in the form of thin porous thin films are provided on the front and rear faces of the zirconia solid electrolyte 21. The coarse particle layer 31 of alumina, magnesia, alumina spinel, zirconia, etc., having 20-80mu average particle size is formed to 50-500mum thickness by plasma thermal spraying on the front face electrode 25 while the porosity is controlled to 15-30%. A soln. of the superfine particles (0.01-0.5mum average grain size) of zirconia, alumina, silica, etc., is then impregnated and packed in the gaps of the thermally sprayed layer over the entire part thereof and is calcined to form the superfine particle layer 32. The detecting element having the dense gas diffusion resistance layer 26 of the small porosity is thereby obtd. and the air-fuel ratio measuring range in a rich region is increased.

48. 发明专利

JP2004134541A In-vehicle millimeter wave radar device, millimeter wave radar module, and method for manufacturing them 有权
公开(公告)号：JP2004134541A
公开(公告)日：2004-04-30
申请号：JP2002296872
申请日：2002-10-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAZAWA TERUMI , SASADA YOSHIYUKI , OUCHI SHIRO
IPC分类号： H01L23/12 , G01S7/03 , G01S7/28 , G01S13/93 , H01L23/02 , H01L23/10 , H01L23/20 , H01L23/26 , H01Q23/00
CPC分类号： G01S7/032 , G01S2013/9371 , H01L2224/48091 , H01L2924/16152 , H01L2924/00014
摘要： PROBLEM TO BE SOLVED: To obtain a millimeter wave radar device and a millimeter wave radar module having a cavity structure for preventing deterioration in millimeter wave electrical characteristics, and high moisture resistance. SOLUTION: A multilayer substrate mounted with a millimeter wave MMIC and a cap for forming a cavity are bonded to each other with an organic member which may be an adhesive agent or the like for the assurance of excellent high-frequency characteristics. The whole is accommodated in a case where it is covered by a moisture-resistant gelled organic resin for the construction of a structure having no airtightness. The design enables the use of inexpensive materials and enhances productivity. COPYRIGHT: (C)2004,JPO

49. 发明专利

JPH085604A OUTPUT DETECTION METHOD FOR AIR/FUEL RATIO SENSOR 失效
公开(公告)号：JPH085604A
公开(公告)日：1996-01-12
申请号：JP12348694
申请日：1994-06-06
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： SATO KANEMASA , HASEGAWA NORIO , UENO SADAYASU , MINAMI NAOKI , OUCHI SHIRO
IPC分类号： G01N27/41
摘要： PURPOSE:To obtain highly accurate output characteristics by subtracting a predetermined value from the output of an operational amplifier when the voltage drop across a current detection resistor is higher than a predetermined value and switching the range of cell detection current appropriately. CONSTITUTION:The inner electrode 3 of a zirconia cell 1 built in an air/fuel ratio sensor is connected through a cell current detection resistor R0 with a D/A converter 6, an operational amplifier Op1, a bidirectional driving transistor Tr1, and the like. The outer electrode 4 is connected through a bidirectional driving Tr3 with an operational amplifier Op2 receiving a predetermined voltage divided through voltage dividing resistors R7, R8. The voltages V1, V2 at the opposite ends of the resistor R0 are connected, respectively, through resistors R1, R1 with the negative and positive inputs of an operational amplifier Op3. A microcomputer 5 takes in the output V0 from the operational amplifier Op3 through a resistor R13 and delivers a range switching signal to a Tr4. When the voltage drop across the resistor R0 reaches a predetermined value and the output V0 increases over 4.8V, for example, the microcomputer 5 turns the Tr4 ON to lower the voltage V0 by 4V thus making a switch to H range. When the output V0 decreases below 4.8V, the Tr4 is turned OFF to make a switching to L range.

50. 发明专利

JPH0755767A AIR-FUEL RATIO SENSOR 失效
公开(公告)号：JPH0755767A
公开(公告)日：1995-03-03
申请号：JP20622593
申请日：1993-08-20
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： UENO SADAYASU , HASEGAWA NORIO , MINAMI NAOKI , SATO KANEMASA , OUCHI SHIRO
IPC分类号： F02D45/00 , G01N27/409 , G01N27/41 , G01N27/419
摘要： PURPOSE:To detect an atmospheric pressure by an air-fuel ratio sensor without using a special purpose atmospheric pressure sensor. CONSTITUTION:In air-fuel detection mode, oxygen molecules are ionized and pumped between atmospheric side electrodes 1 of solid electrolyte 2 and an exhaust side electrode 3 with exhaust diffusing rate-determining member 4 by a microcomputer 12, current drivers 8, 9 so that concentration battery electromotive force E generated between the electrode 1 and the electrode 3 may become a predetermined value. In atmospheric pressure measurement mode, the molecules are pumped in a predetermined quantity or a quantity reaching a balance from the atmospheric side electrode to a periphery of the electrode 3 to detect concentration battery electromotive force Ep generated between the electrodes 1 and 3, this is applied to correlation between the atmospheric pressure and the force Ep previously obtained by experiments to obtain present atmospheric pressure. The oxygen is pumped from the electrode 1 to the periphery of the electrode 3 until a change of the electromotive force is arrived at a set change amount, this predetermined time (t) is applied to the correlation between the atmospheric pressure of a previously obtained elevation and the time (t), and the prevent atmospheric pressure is calculated.

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