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1. 发明专利

JPH0993076A THICKNESS MODE PIEZOELECTRIC OSCILLATOR 失效
公开(公告)号：JPH0993076A
公开(公告)日：1997-04-04
申请号：JP27057095
申请日：1995-09-25
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI
IPC分类号： H03H9/19
摘要： PROBLEM TO BE SOLVED: To suppress the level of oscillation fluctuation at the peripheral edge part of a piezoelectric substrate without changing the size of an electrode. SOLUTION: Concerning this thickness mode piezoelectric oscillator, a groove part having a cut-off frequency higher than the cut-off frequency of a peripheral part is arranged proximately to an electrode for excitation at a gap with the peripheral part. The outside length of groove is defined as 2q, reference groove width μis defined as μ=(q-a)/a, the cut-off frequency of an electrode part is defined as f1 , the cut-off frequency of groove part is defined as f2 , the cut-off frequency of peripheral part is defined as f3 and reference groove depth ν is defined as ν=(f2 -f3 )/(f3 -f1 ). At such a time, the condition of μ ν >=10 is established.

2. 发明专利

JPH0476527B2 失效
公开(公告)号：JPH0476527B2
公开(公告)日：1992-12-03
申请号：JP11905585
申请日：1985-05-31
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , SHOJI JUICHI , TANAKA YOSHIAKI
IPC分类号： H03B5/32 , H03H9/13 , H03H9/17 , H03H9/19

3. 发明专利

JPH01221011A RESONANCE FREQUENCY MEASURING METHOD AND VACUUM DEPOSITION ADJUSTING METHOD 失效
公开(公告)号：JPH01221011A
公开(公告)日：1989-09-04
申请号：JP4698388
申请日：1988-02-29
申请人： TOYO COMMUNICATION EQUIP
发明人： TANAKA YOSHIAKI , HIRAMA KOICHI
IPC分类号： H03H3/04 , H03H9/02
摘要： PURPOSE:To measure the resonance frequency by pressing a needle conductor into contact onto an electrode lead at both front and rear faces of a piezoelectric substrate supported in a deposition mask. CONSTITUTION:A probe 16 moved vertically by a solenoid is pressed into contact onto a lead 5 on the front and rear faces of the piezoelectric substrate 1 supported in the vapor deposition mask 2 and whose base deposition is finished and the resonance frequency is measured without extracting the said piezoelectric substrate from the deposition mask. Since the needle conductor is supported from a location parted from the electrode, the resonance frequency is measured without suppressing vibration.

4. 发明专利

JPH01149607A PIEZO-RESONATOR WITH BUILT-IN INDUCTOR 失效
公开(公告)号：JPH01149607A
公开(公告)日：1989-06-12
申请号：JP30930787
申请日：1987-12-07
申请人： TOYO COMMUNICATION EQUIP
发明人： TANAKA YOSHIAKI , HIRAMA KOICHI
IPC分类号： H03H9/02 , H03H9/19
摘要： PURPOSE:To constitute the oscillation circuit of a circuit with an IC by forming an inductor by vapor-depositing or printing helical or U-shaped conductor patterns coupled in zigzags on a piezo-resonator blank plate or enclosing member and, at the same time, electrically coupling the conductor patterns with a piezo-resonator. CONSTITUTION:On the inner surface of an enclosing member 3 a helical conductor 11 is formed by vapor-deposition or printing. The outer peripheral end section of the conductor 11 is connected with a through hole 6b and its central end section is connected with a through hole 6a by means of a lead wire 13. Moreover, the inside of a through hole 12 is filled up with a glassy or ceramic material so as to maintain airtightness. Then the outer peripheral sections 14 of members 1, 2, and 3 which are brought into contact with other members and the periphery 15 of each through hole is metallized and soldered by using low-melting point glass solder so as to closely enclose a piezo-resonator blank plate 1. The blank plate 1 is connected with a lead wire 16 through through holes 4a and 4c. Therefore, this piezo-resonator becomes equivalent to the circuit shown in the figure and can be relatively easily and inexpensively manufactured.

5. 发明专利

JPS62192138A PRODUCTION OF SENSOR FOR MEASURING TEMPERATURE IN LIVING BODY 失效
公开(公告)号：JPS62192138A
公开(公告)日：1987-08-22
申请号：JP3260486
申请日：1986-02-17
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/00 , A61B5/01

6. 发明专利

JPS62192136A APPARATUS FOR MEASURING TEMPERATURE IN LIVING BODY 失效
公开(公告)号：JPS62192136A
公开(公告)日：1987-08-22
申请号：JP3260286
申请日：1986-02-17
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/00 , A61B5/01

7. 发明专利

JPS62102733A APPARATUS FOR DETECTING AND DISPLAYING TEMPERATURE IN LIVING BODY 失效
公开(公告)号：JPS62102733A
公开(公告)日：1987-05-13
申请号：JP24473685
申请日：1985-10-31
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/00 , A61B5/01

8. 发明专利

JPS61280842A TEMPERATURE SENSOR IN LIVING BODY 失效
公开(公告)号：JPS61280842A
公开(公告)日：1986-12-11
申请号：JP12320385
申请日：1985-06-06
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： G01K1/16 , A61B5/00 , A61B5/01

9. 发明专利

JPS61122845A Measurement of temperature or pressure in living body 失效
标题翻译：生活体内温度或压力的测量
公开(公告)号：JPS61122845A
公开(公告)日：1986-06-10
申请号：JP24309884
申请日：1984-11-16
申请人： Toyo Communication Equip
发明人： HIRAMA KOICHI , OSHIMA TAKESHI
IPC分类号： G01K7/32 , A61B5/05 , A61B5/07 , G01L9/00

10. 发明专利

JPH11122039A PIEZOELECTRIC OSCILLATOR USING COMPOSITE VIBRATOR 失效
公开(公告)号：JPH11122039A
公开(公告)日：1999-04-30
申请号：JP30350497
申请日：1997-10-17
申请人： TOYO COMMUNICATION EQUIP
发明人： HIRAMA KOICHI
IPC分类号： H03B5/32
摘要： PROBLEM TO BE SOLVED: To obtain a highly stable quartz oscillator which uses no thermostatic chamber by connecting a specific number of piezoelectric vibrators having radial frequency temperature characteristics in parallel and setting the peak temperature and peak frequency of the vibrators flat. SOLUTION: This oscillator consists of a parallel connection of four LC series circuits and a parallel connection of the parallel capacity C01 +C02 +C03 +C04 of four BT-cut crystal vibrators, an amplifier load capacity CL, and a load resistance -RL. The crystal vibrators #1 and #4 have mutually equal equivalent inductance L and peak frequency fT and their peak temperatures are set to t1 and t2 respectively. Further, vibrators #2 and #3 have mutually equal equivalent inductance KL and peak frequency fT2 and their peak temperatures are set to t2 and t3 . At this time, the peak temperatures of the vibrators #2 and #3 are arranged symmetrically at points a half of the temperature difference between the temperatures t2 and t3 away from the midpoint between the peak temperatures t1 and t4 of the vibrators #1 and #4. Consequently, the highly stable oscillator is constituted which has about 10-8 at 5 to 45 deg.C.

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