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1. 发明专利

JPS525936A WAVE DISTURBANCE SUPPRESSED STRUCTURE 失效
公开(公告)号：JPS525936A
公开(公告)日：1977-01-18
申请号：JP8093875
申请日：1975-07-02
申请人： YAMAMOTO MORIYUKI , MIYAZAKI HIROSHI , SUETAKE KUNIHIRO , SHIMIZU YASUTAKA
发明人： YAMAMOTO MORIYUKI , MIYAZAKI HIROSHI , SUETAKE KUNIHIRO , SHIMIZU YASUTAKA
IPC分类号： E04H1/00 , H05K9/00
摘要： PURPOSE:To effectively suppress wave disturbance by attenuating reflected wave directed in the ground direction.

2. 发明专利

JPH11353559A ALARM TONE EMITTER FOR GOLF COURSE 失效
公开(公告)号：JPH11353559A
公开(公告)日：1999-12-24
申请号：JP17407198
申请日：1998-06-07
申请人： ODAJIMA KAZUO , SHIGEMI ATSUSHI , SHIMIZU YASUTAKA , TOMIOKA KOJI , HONDA EIJU
发明人： ODAJIMA KAZUO , SHIGEMI ATSUSHI , SHIMIZU YASUTAKA , TOMIOKA KOJI , HONDA EIJU
IPC分类号： G08B3/10 , G08B21/00 , G08B23/00
摘要： PROBLEM TO BE SOLVED: To provide an alarm tone emitter which surely informs a remotely playing person or gallery that a ball is flying in a golf course. SOLUTION: This alarm tone emitter consists of a base which can be set on the ground and a main body provided in the upper end of a pole 3 stood on the base 2, and the main body incorporates an operation switch for alarm tone generation, a sound data processor which converts and amplifies digital sound data stored in a memory into an analog sound signal based on the operation of this switch, and a speaker 7 which outputs this analog sound signal as sounds.

3. 发明专利

JPH08316781A SURFACE ACOUSTIC WAVE ELEMENT 失效
公开(公告)号：JPH08316781A
公开(公告)日：1996-11-29
申请号：JP14267295
申请日：1995-05-17
申请人： SHIMIZU YASUTAKA , SANYO ELECTRIC CO
发明人： SHIMIZU YASUTAKA , NISHIKATA ATSUHIRO , TOHA SHIGETAKA
IPC分类号： H03H9/25
摘要： PURPOSE: To provide the surface acoustic wave element with high performance by finding out a cut face and a surface acoustic wave propagation direction more proper than those of a conventional element in a lithium niobate substrate and a lithium tantalate substrate. CONSTITUTION: When a cut face and a surface acoustic wave propagation direction of a piezoelectric substrate made of a lithium tantalate are selected to be (ϕ, θ, ψ) in Euler angle representation and a range substantially equivalent thereto, the angle ϕ is 90 deg., θ is 90 deg. and ψ is in a range of 0 to 180 deg.. Furthermore, when a cut face and a surface acoustic wave propagation direction of a piezoelectric substrate made of a lithium niobate are selected to be (ϕ, θ, ψ) in Euler angle representation and a range substantially equivalent thereto, the angle ϕis 90 deg., θ is 90 deg. and ψ is in a range of 0 to 180 deg..

4. 发明专利

JPH0326350B2 失效
公开(公告)号：JPH0326350B2
公开(公告)日：1991-04-10
申请号：JP20255481
申请日：1981-12-17
申请人： TEII DEII KEI KK , SHIMIZU YASUTAKA
发明人： ISHINO TAKESHI , SHIMIZU YASUTAKA , MIURA TARO , WATANABE TAKASHI
IPC分类号： G01R29/10 , G01R31/00 , H01Q15/14 , H05K9/00

5. 发明专利

JPS55107316A UNIDIRECTIONAL CONVERTER FOR SURFACE ACOUSTIC WAVE 失效
公开(公告)号：JPS55107316A
公开(公告)日：1980-08-18
申请号：JP1437079
申请日：1979-02-13
申请人： SHIMIZU YASUTAKA
发明人： SHIMIZU YASUTAKA
IPC分类号： H03H3/08 , H03H9/02 , H03H9/145
摘要： PURPOSE:To enable to oscillate surface acoustic waves only unidirectionally, by using the speed change of surface acoustic waves by DC magnetic field. CONSTITUTION:The reed screen electrodes 2A, 2B are formed on the magnetic substance board 1, and the piezoelectric film 3 is formed on it. Further, to the desired propagation direction P on the board 1, DC magnetic field H is fed with a slope. With this constitution, taking the frequency propagating on the board 1 as f, wave length as lambda, and velocity as V, V=flambda is established. Since DC magnetic field H is fed, the velocity of surface acoustic waves toward desired propagation P is changed to V1, and the velocity of propagation direction Q is changed to V2 respectively and V1not equal to V2 is obtained. Thus, the frequency toward P is f1=v1/lambda, and the frequency of propagation direction Q is as f2=V2/lambda, and consequently, excitation is made with the resonant frequency f1 of desired propagation direction P, then surface acoustic waves are toward P to increase the energy conversion efficiency between electric and acoustic waves.

6. 发明专利

JPS52149427A DEVICE FOR REDUCING TELEVISION GHOST 失效
公开(公告)号：JPS52149427A
公开(公告)日：1977-12-12
申请号：JP6692276
申请日：1976-06-08
申请人： SHIMIZU YASUTAKA
发明人： SHIMIZU YASUTAKA
IPC分类号： H04N5/21 , H04B1/10

7. 发明专利

JPH1168609A WIRELESS TRANSMISSION-RECEPTION SYSTEM 失效
公开(公告)号：JPH1168609A
公开(公告)日：1999-03-09
申请号：JP23545097
申请日：1997-08-15
申请人： ODAJIMA KAZUO , SHIGEMI ATSUSHI , SHIMIZU YASUTAKA , TOMIOKA KOJI , HONDA EIJU
发明人： ODAJIMA KAZUO , SHIGEMI ATSUSHI , SHIMIZU YASUTAKA , TOMIOKA KOJI , HONDA EIJU
IPC分类号： H04B1/40
摘要： PROBLEM TO BE SOLVED: To enable communication from an arbitrary transmitter only to a specified receiver within the same frequency by arbitrarily setting the ID numbers of digital switches or the like mounted on the transmitter and the receiver. SOLUTION: This wireless transmission-reception system 1 is composed of a transmitter 2 and a receiver 3. Each time a transmission switch A is turned on, the transmitter 2 outputs the carrier burst modulated high frequency signal of a pulse number set as the ID number by a pulse setting means D for setting the number of pulses to be generated from a pulse generating means B. Besides, only when the ID number preset by a comparative value setting means H for arbitrarily setting the comparative set value of a counting/comparing means is coincident with the number of pulses of a received signal, the receiver 3 outputs an output signal G and drives an alarm or display means. The operation for setting the ID number can be easily performed by the digital switch or the like and there is no trouble in the operation for setting the ID number for each group or each member in the group.

8. 发明专利

JPH08340234A SURFACE ACOUSTIC WAVE FILTER 失效
公开(公告)号：JPH08340234A
公开(公告)日：1996-12-24
申请号：JP8864596
申请日：1996-04-10
申请人： SANYO ELECTRIC CO , SHIMIZU YASUTAKA
发明人： MATSUI KUNIYUKI , HIRAO YASUHIRO , KOBAYASHI TAIZO , TAKEUCHI KOSUKE , SHIBATA KENICHI , IKEDA MASAMI , TANAKA TOSHIHARU , SHIMIZU YASUTAKA
IPC分类号： H03H9/25 , H03H9/64
摘要： PURPOSE: To improve the performance of a resonator coupling surface acoustic wave filter using a lithium tantalate substrate, a lithium niobate substrate or a lithium tetraborate substrate having a high acoustic velocity cutting face by clearly defining the optimum range of a necessary design parameter. CONSTITUTION: The propagation direction of the surface acoustic wave is controlled within the range of (40 deg. to 90 deg., 40 deg. to 90 deg. and 0 deg. to 60 deg.) by Euler's angle display and a frequency difference Δf between the resonance frequency (frs) of a series arm resonator and the resonance frequency (frp) of a parallel arm resonator is set within a prescribed range formulated by using center frequency, the electrostatic capacitance Cos of the series arm resonator and the electrostatic capacitance Cop of the parallel arm resonator as parameters.

9. 发明专利

JPH08340232A SURFACE ACOUSTIC WAVE FILTER 失效
公开(公告)号：JPH08340232A
公开(公告)日：1996-12-24
申请号：JP32962995
申请日：1995-11-24
申请人： SANYO ELECTRIC CO , SHIMIZU YASUTAKA
发明人： MATSUI KUNIYUKI , HIRAO YASUHIRO , KOBAYASHI TAIZO , TAKEUCHI KOSUKE , SHIBATA KENICHI , TAKAHASHI HIROSUKE , KONDO TAKEO , SHIMIZU YASUTAKA
IPC分类号： H03H9/25 , H03H9/02 , H03H9/64
摘要： PURPOSE: To improve the performance of a resonator coupling surface acoustic wave filter using a lithium tantalate substrate, a lithium niobate substrate or a lithium tetraborate substrate having a high acoustic velocity cutting face by clearly defining the optimum range of a necessary design parameter. CONSTITUTION: The propagation direction of the surface acoustic wave is controlled within the range of (40 deg. to 90 deg., 40 deg. to 90 deg. and 0 deg. to 60 deg.) by Euler's angle display and the electrostatic capacitance Cos of a series arm resonator and the electrostatic capacitance Cop of a parallel arm resonator are set within a prescribed range formulated by using center frequency as a parameter.

10. 发明专利

JPH0247889B2 失效
公开(公告)号：JPH0247889B2
公开(公告)日：1990-10-23
申请号：JP827182
申请日：1982-01-23
申请人： SHIMIZU YASUTAKA
发明人： SHIMIZU YASUTAKA
IPC分类号： H03H9/145 , H03H3/08 , H03H9/02 , H03H9/25

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