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1. 发明专利

JPH0875518A TEMPERATURE SENSITIVE RESISTOR ELEMENT FOR AIR FLOW MEASURING APPARATUS 失效
公开(公告)号：JPH0875518A
公开(公告)日：1996-03-22
申请号：JP21233994
申请日：1994-09-06
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： WATANABE IZUMI , ISONO TADASHI , TAKAHASHI MINORU
IPC分类号： G01P5/12 , G01F1/68 , G01F1/69
摘要： PURPOSE: To form a multilayer polyimide film having no bubble nor pinhole by repeating the operation for applying and firing a polyimide resin several times while varying the density. CONSTITUTION: A solid alumina bobbin 9 applied with a thin platinum film 10 is press fitted, at bothe the ends thereof, with stainless steel caps 11, for example. It is then subjected to resistance trimming and a lead 12 is butt welded to each cap aligning with the bobbin axis then a multilayer polyimide film 8 is formed on the surface. When the multilayer film 8 is formed, a polyimide material liquid is diluted with a solvent and applied with 1-5 poise and then it is fired at 200 deg.C to evaporate the solvent sufficiently. The operation is repeated to cover the level difference between the end face of the cap 11 and the bobbin 9 and the trimming groove in the thin film 10. Subsequently, the dilution is changed to increase the density of polyimide resin. For example, a polyimide liquid having viscosity of 30 poise and resin density of 25% is applied thick repetitively and fired finally at 300-400 deg.C thus stabilizing the film 8 chemically.

2. 发明专利

JPH0814978A THERMAL TYPE AIR FLOWMETER 失效
公开(公告)号：JPH0814978A
公开(公告)日：1996-01-19
申请号：JP15329494
申请日：1994-07-05
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： TAKAHASHI MINORU , WATANABE IZUMI , ISONO TADASHI , NISHIMURA YUTAKA , NUNOKAWA ISAO
IPC分类号： G01F1/68 , F02D45/00 , G01F1/692
摘要： PURPOSE:To correct the flow rate signal of a thermal type air flowmeter when a back flow occurs so as to improve the accuracy of measurement of the flowmeter by detecting the flow rate of air by means of an exothermic resistor and the flowing direction of the air from the difference between the signals of temperature sensors respectively provided on the upstream and downstream sides of the exothermic resistor. CONSTITUTION:A film type exothermic resistor 4 is formed on a substrate 3 composed of such an electrical insulator as a ceramic, silicon, etc., and two temperature detecting resistors 5 and 6 are respectively provided on the upstream and downstream sides of the resistor 4. In addition, an intake air temperature compensating resistor 7 is provided. The resistors 4 and 7 constitute a bridge together with resistors 10 and 11 and fetches a flow rate signal as the voltage Vi at the midpoint of the bridge by feeding back signals to a transistor 13 through a differential amplifier 12. The resistors 5 and 6 similarly constitute a bridge together with resistors 8 and 9 and the difference between both signals is fetched as an air flow signal through a comparator 14. A microcomputer 15 fetches the two signals and outputs an accurate flow rate signal by correcting the flow rate signal when the computer 15 discriminates that a back flow occurs.

3. 发明专利

DE60218089D1 未知
公开(公告)号：DE60218089D1
公开(公告)日：2007-03-29
申请号：DE60218089
申请日：2002-02-27
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SASADA YOSHIYUKI , ISONO TADASHI , OOUCHI SHIRO , NAKAZAWA TERUMI , OOBA MAMORU
IPC分类号： B60R11/02 , H01Q21/00 , G01S7/02 , G01S7/03 , G01S7/28 , H01Q1/22 , H01Q1/32 , H01Q1/36 , H01Q1/38 , H01Q9/04 , H01Q21/06 , H01Q23/00
摘要： A high frequency transmitter-receiver which can prevent an antenna pattern from being broken. A radar apparatus 1 is provided with a high frequency antenna 4, a base plate 5 and a module 3. The antenna 4 is comprised of an organic substrate 4A and a metal pattern 4B formed on the organic substrate 4A. The high frequency antenna 4 is adhered to the base plate 5 astride the module 3. Here, the gap between the base plate 5 and the module 3 where the antenna is adhered is configured to satisfy the expression (an amount of change in gap size with respect to a change in use temperature) DIVIDED (an original gap size)

4. 发明专利

DE19619910C2 未知
公开(公告)号：DE19619910C2
公开(公告)日：2002-02-21
申请号：DE19619910
申请日：1996-05-17
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： YAMADA MASAMICHI , UCHIYAMA KAORU , WATANABE IZUMI , ISONO TADASHI , NAKAU TOSHIHIKO
IPC分类号： G01P5/12 , F02D35/00 , G01F1/68 , G01F1/692 , G01F1/698 , H01C13/00 , F02D41/18
摘要： A measuring element for a mass air flow sensor formed on a substrate for measuring a flow rate of an objective fluid comprises a pair of heated resistors of thin films juxtaposed in the flowing direction of the objective fluid, formed at a thin film heated resistor forming part on the substrate, a pair of non-heated ambient temperature sensing resistors of thin films, formed at a thin film ambient temperature sensing resistor forming part on the substrate, and a plurality of electrode terminals of thin films formed at a supporting part at which the substrate is supported, being a part excluding the heated resistor thin film forming part and the thin film ambient temperature sensing resistor forming part, for taking out electrical signals from the heated resisters and the non-heated ambient temperature sensing resistors, wherein the thin film heated resistor forming part and the thin film ambient temperature sensing resistor forming part are shifted each other and arranged before and after in the flowing direction of the fluid, and shifted and arranged left and right in the direction perpendicular to the flowing direction so that the pair of the heated resistors and the pair of the non-heated do not superimpose each other in the viewing direction parallel to the flowing direction, and the supporting part is allocated at one end side of the substrate, at which the plurality of electrode terminals of thin films are formed.

5. 发明专利

DE60218089T2 未知
公开(公告)号：DE60218089T2
公开(公告)日：2007-08-09
申请号：DE60218089
申请日：2002-02-27
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SASADA YOSHIYUKI , ISONO TADASHI , OOUCHI SHIRO , NAKAZAWA TERUMI , OOBA MAMORU
IPC分类号： B60R11/02 , H01Q21/00 , G01S7/02 , G01S7/03 , G01S7/28 , H01Q1/22 , H01Q1/32 , H01Q1/36 , H01Q1/38 , H01Q9/04 , H01Q21/06 , H01Q23/00
摘要： A high frequency transmitter-receiver which can prevent an antenna pattern from being broken. A radar apparatus 1 is provided with a high frequency antenna 4, a base plate 5 and a module 3. The antenna 4 is comprised of an organic substrate 4A and a metal pattern 4B formed on the organic substrate 4A. The high frequency antenna 4 is adhered to the base plate 5 astride the module 3. Here, the gap between the base plate 5 and the module 3 where the antenna is adhered is configured to satisfy the expression (an amount of change in gap size with respect to a change in use temperature) DIVIDED (an original gap size)

6. 发明专利

DE19800628C2 未知
公开(公告)号：DE19800628C2
公开(公告)日：2001-03-08
申请号：DE19800628
申请日：1998-01-09
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： ISONO TADASHI , WATANABE IZUMI , TAKASAGO AKIRA
IPC分类号： G01F1/68 , G01F1/692 , G01F1/698 , G01F1/699 , H01C7/00

7. 发明专利

DE19800628A1 Air flow measuring device with temperature compensation, especially for IC engine 未知
公开(公告)号：DE19800628A1
公开(公告)日：1998-07-16
申请号：DE19800628
申请日：1998-01-09
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： ISONO TADASHI , WATANABE IZUMI , TAKASAGO AKIRA
IPC分类号： G01F1/68 , G01F1/692 , G01F1/698 , G01F1/699 , H01C7/00
摘要： The transducer has an upstream heating resistor (4a) and a downstream one (4b). The transducer also has two temperature compensation resistors (5a,5b) each associated with a heating resistor (4a,4b). Both heating resistors are attached to an electrically insulated substrate (32) which is arranged in the air flow. A resistive film of the temperature compensation resistor (5a) associated with the upstream resistor is overlapped by a resistive film of the temperature compensation resistor (5b) associated with the downstream resistor. A larger part of the resistive film of the temperature compensation resistor (5a) associated with the upstream resistor is arranged on the insulated substrate than for the resistive film of the temperature compensation resistor (5b) associated with the downstream resistor. The resistive films may be formed as resistor patterns in double spirals on the substrate.

8. 发明专利

DE19619910A1 Measuring element for mass airflow sensor 未知
公开(公告)号：DE19619910A1
公开(公告)日：1996-12-19
申请号：DE19619910
申请日：1996-05-17
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： YAMADA MASAMICHI , UCHIYAMA KAORU , WATANABE IZUMI , ISONO TADASHI , NAKAU TOSHIHIKO
IPC分类号： G01P5/12 , F02D35/00 , G01F1/68 , G01F1/692 , G01F1/698 , H01C13/00 , F02D41/18
摘要： The measuring element has at least one pair of thin-film heating resistances (1,2) applied to the surface of a substrate (4) to lie next to one another in the airflow direction. The substrate also supports at least one pair of thin-film ambient air temp. detection resistances (3a,3b) offset from the heating resistances perpendicular to the air flow direction, with electrode terminals (6a,..6f) for providing signals from both sets of resistances arranged along one edge of the substrate.

9. 发明专利

JP2009141386A High frequency module and transmitter-receiver 有权
标题翻译：高频模块和发射机接收机
公开(公告)号：JP2009141386A
公开(公告)日：2009-06-25
申请号：JP2007312161
申请日：2007-12-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISONO TADASHI , SHIMADA KOJI
IPC分类号： H01P3/12 , G01S7/03 , H01P11/00 , H04B1/3822 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To provide a high frequency module having a mounting structure easily manufactured at a low cost. SOLUTION: The high frequency module includes: a high frequency antenna 1 provided with an antenna side high frequency connection terminal 13 for inputting and outputting a high frequency signal, a high frequency circuit board 4 configured by mounting on a dielectric substrate 5 a high frequency circuit 7 for transmitting and receiving the high frequency signal and a high frequency circuit board side connection terminal 14 connected to the high frequency circuit 7 to input and output the high frequency signal, and a metal base 3 disposed between the high frequency antenna 1 and the high frequency circuit board 4 with a waveguide 2 and for connecting the antenna side high frequency connection terminal 13 and the high frequency circuit side connection terminal 14 formed therein. The metal base 3 is formed by laminating three or more metal plates 15 having a through-hole 16 for forming the waveguide 2, and the waveguide 2 is cranked only by the through-hole 16 of the laminated metal plates 15. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有易于以低成本制造的安装结构的高频模块。解决方案：高频模块包括：高频天线1，其设置有用于输入和输出高频信号的天线侧高频连接端子13;高频电路板4，其通过安装在电介质基板5上用于发送和接收高频信号的高频电路7和连接到高频电路7的高频电路板侧连接端子14以输入和输出高频信号;以及金属基座3，设置在高频天线1 和具有波导管2的高频电路基板4，用于连接形成在其中的天线侧高频连接端子13和高频电路侧连接端子14。金属基体3通过层叠具有用于形成波导2的通孔16的三个或更多个金属板15而形成，并且波导2仅由层叠金属板15的通孔16起弧。（C）2009，JPO＆INPIT

10. 发明专利

JP2004173318A High frequency transmitting/receiving apparatus 审中-公开
公开(公告)号：JP2004173318A
公开(公告)日：2004-06-17
申请号：JP2004038452
申请日：2004-02-16
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： OUCHI SHIRO , NAKAZAWA TERUMI , YOKOYAMA MIZUHO , KOSHIZAKA ATSUSHI , ISONO TADASHI
IPC分类号： H01Q23/00 , G01S7/03 , H01Q1/22
摘要： PROBLEM TO BE SOLVED: To provide a high frequency transmitting/receiving apparatus capable of being made into a module rationally, thereby being made high in precision, small in size and simle in configuration. SOLUTION: The high frequency transmitting/receiving apparatus is made into a module by attaching an antenna substrate 3 and a front substrate 4 on which a front portion of a high frequency transmitting/receiving circuit is packaged on a portion of a base plate 1, and a recess 1a is formed on the base plate 1 to obtain a connection path from the outside to the front substrate 4 via a connection part 6 provided in the recess 1a. COPYRIGHT: (C)2004,JPO

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