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21. 发明专利

JPS61181094A TEMPERATURE MEASUREMENT FOR HEATING BODY OF ELECTROMAGNETIC HEATING 失效
公开(公告)号：JPS61181094A
公开(公告)日：1986-08-13
申请号：JP2154185
申请日：1985-02-06
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： H05B6/68 , G01K7/32

22. 发明专利

JPH0626602B2 失效
公开(公告)号：JPH0626602B2
公开(公告)日：1994-04-13
申请号：JP9730086
申请日：1986-04-26
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OOSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/00 , A61B5/01 , A61N5/02

23. 发明专利

JPH0587248B2 失效
公开(公告)号：JPH0587248B2
公开(公告)日：1993-12-16
申请号：JP24309884
申请日：1984-11-16
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OOSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/05 , A61B5/07 , G01L9/00

24. 发明专利

JPH053911B2 失效
公开(公告)号：JPH053911B2
公开(公告)日：1993-01-18
申请号：JP24309784
申请日：1984-11-16
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OOSHIMA TAKESHI
IPC分类号： G01R27/28 , G01R27/26 , H03H3/04

25. 发明专利

JPH0278313A STRUCTURE FOR OVERTONE OSCILLATING PIEZOELECTRIC RESONATOR 失效
公开(公告)号：JPH0278313A
公开(公告)日：1990-03-19
申请号：JP4961489
申请日：1989-03-01
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , SHOJI YUICHI , TANAKA YOSHIAKI
IPC分类号： H03H9/19 , H03H9/17
摘要： PURPOSE:To attain the oscillation at a desired overtone frequency without requiring any special oscillation circuit by connecting one of exciting electrodes and sub electrodes through a conductive pattern in an overtone oscillating piezoelectric resonator used for an electronic device such as a communication equipment. CONSTITUTION:Electrodes 2, 2' whose diameter is 2a are adhered to both faces of the middle part of a piezoelectric substrate 1 whose thickness is H, the cut-off frequency of the part is decreased to f1 to provide a cut-off frequency difference f2-f1 between the part and a part with a cut-off frequency f2 therearound. Then the part adhered with the electrodes 2, 2' is used as a vibration energy confinement part, and parts 3, 3' of no electrode are used as a vibration energy propagation part, and undesired vibrating energy propagation areas 4, 4' whose cut-off frequency is f3 (f3 f1

26. 发明专利

JPH01114209A CHARACTERISTIC ADJUSTING METHOD FOR PIEZOELECTRIC RESONATOR FOR OVERTONE OSCILLATION 失效
公开(公告)号：JPH01114209A
公开(公告)日：1989-05-02
申请号：JP27280687
申请日：1987-10-28
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , HAMASHIMA TAKAO , NAKADA MINORU
IPC分类号： H03H3/04 , H03H9/02 , H03H9/19
摘要： PURPOSE:To perform the characteristic adjustment of a resonator in a short time by using a comparatively simple method by adjusting the cut-off frequency of a vibrational energy absorption area as observing the special valued resistance or the resonance pattern of the resonator or the both of them. CONSTITUTION:The resonator provided with an excitation electrode 2 and the vibrational energy absorption area 4, formed on a piezoelectric substrate 1 through a primary deposition process, is fixed at its holding part, and its resonances mode and equivalent resistance related to those are observed, and in a case that the equivalent resistance does not satisfy a specification, the characteristic adjustment is performed by applying an additional deposition to only the vibrational energy absorption area 4 or by grinding the absorption area 4. Thus, the characteristic of the resonator can be quickly settled within the desired specification.

27. 发明专利

JPS63272207A COLPITZ OSCILLATION CIRCUIT 失效
公开(公告)号：JPS63272207A
公开(公告)日：1988-11-09
申请号：JP10761687
申请日：1987-04-30
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI , NAKADA MINORU
IPC分类号： H03B5/32
摘要： PURPOSE:To simplify the circuit constitution by employing at least one of two basic capacitors in a Colpitz oscillation circuit as a variable capacitor and using the variable capacitor so as to adjust the oscillating frequency thereby eliminating the need for a variable capacitor and an expanding coil having been inserted in series with the crystal resonator in a conventional circuit. CONSTITUTION:A basic capacitor in a conventional circuit placed between a base B and an emitter of a transistor(TR) 1 is replaced into a variable capacitor C'1 and a variable capacitor and an inductance connected in series with a crystal oscillator X are removed. Thus, if a load capacitance C'1 of the circuit side when viewed from the crystal resonator X1 is changed slightly in response to the change in the basic capacitor C'1, since the oscillation operating point of the crystal resonator X1 is changed, the oscillation output frequency is set to a desired value. Moreover, since the equivalent reactance of the crystal resonator X1 and the equivalent reactance of the circuit are nearly the same value with inverted polarity, the apparent frequency variable sensitivity of the crystal resonator is increased. Thus, the expanding coil having been indispensable of a conventional overtone oscillation circuit is not required.

28. 发明专利

JPS62254729A APPARATUS FOR MEASURING TEMPERATURE IN BODY 失效
公开(公告)号：JPS62254729A
公开(公告)日：1987-11-06
申请号：JP9730186
申请日：1986-04-26
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/00 , A61B5/01

29. 发明专利

JPS62169510A STRUCTURE OF VIBRATING ENERGY ABSORBING PART OF PIEZOELECTRIC RESONANTOR FOR OSCILLATION OF OVERTONE 失效
公开(公告)号：JPS62169510A
公开(公告)日：1987-07-25
申请号：JP1082686
申请日：1986-01-21
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , SHOJI YUICHI , TANAKA YOSHIAKI
IPC分类号： H03H9/17 , H03H9/13 , H03H9/19 , H03H9/24
摘要： PURPOSE:To improve the suppressing effects against undesired vibrations by setting the cut-off frequency of a vibrating energy absorbing part set near the outer circumference of a piezoelectric substrate at a level less than that of at least a vibrating energy seal-up part containing an exciting electrode. CONSTITUTION:Electrodes 2 and 2' are attached on both sides of a center part of a piezoelectric substrate 1 and the frequency of a corresponding part is reduced down to a level f1 to secure the difference of frequency (f3-f1) against a peripheral part of the cut-off frequency f2. Then the areas where electrodes 2 and 2' are attached are defined as a vibrating energy seal-up part and the non-electrode parts 3 and a3' are defined as a vibrating energy transmission part for undesired vibrations. Furthermore a vibrating energy absorbing part 4 of a cut-off frequency f3 (

30. 发明专利

JPS62168409A OVERTONE OSCILLATING PIEZO-RESONATOR UTILIZING HIGHER ORDER MODE VIBRATION 失效
公开(公告)号：JPS62168409A
公开(公告)日：1987-07-24
申请号：JP975686
申请日：1986-01-20
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , SHOJI YUICHI , TANAKA YOSHIAKI
IPC分类号： H03H9/17 , H03H9/13 , H03H9/19
摘要： PURPOSE:To easily generate an nth-order overtone by providing a multi-division energy confinement part of cut-off frequency f1 on a piezoelectric substrate, providing a part of cut-off frequency f2(f2>f1), also selecting each parameter, and diffusing an overtone of (n-2)th-order or below, to the whole surface of the piezoelectric substrate. CONSTITUTION:Two-split electrodes 2, 2' and 3, 3' are made to adhere to both faces of the center part of a piezoelectric substrate 1, and an excitation is executed. A cut-off frequency of the center part is set lower than a cut- frequency of the peripheral part, and a vibration of an asymmetrical (a0) mode of the lowest order is excited strongly. In case a desired overtone order number is (n), a parameter is selected so that a position of a coefficient of confinement of (n-2)th-order is in a position where an energy confinement rate of a mode curve is zero, namely, a confinement mode does not exist, and also, so that a position of a coefficient of confinement of nth-order is in a position where the confinement rate is large.

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