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公开(公告)号：US20220214228A1
公开(公告)日：2022-07-07
申请号：US17646028
申请日：2021-12-27
Applicant: Kohei SHIBATA
Inventor： Kohei SHIBATA
Abstract: A temperature measurement circuit for measuring a temperature using a temperature sensitive element includes a voltage control circuit configured to apply a control voltage to the temperature sensitive element. The temperature measurement circuit includes a first switching circuit configured to switch levels of the control voltage based on a current flowing through the temperature sensitive element. The temperature measurement circuit includes a conversion circuit configured to convert the current flowing through the temperature sensitive element into a voltage level corresponding to the measured temperature, by using predetermined conversion gain. The temperature measurement circuit includes a second switching circuit configured to switch values of the conversion gain based on the voltage level.
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公开(公告)号：US11101672B2
公开(公告)日：2021-08-24
申请号：US17016469
申请日：2020-09-10
Applicant: Kohei Shibata
Inventor： Kohei Shibata
IPC: H02J7/00
Abstract: A secondary battery protection apparatus includes a plurality of secondary battery protection apparatuses. One of two adjacent secondary battery protection apparatuses includes a voltage determination unit that is not affected by a current transfer signal and configured to receive, through a single communication line, the current transfer signal that is transmitted from the other of the two adjacent battery protection apparatuses through the single communication line and an information element based on changes of a voltage value of a voltage transfer signal, and a current determination unit that is not affected by the voltage transfer signal and configured to receive, through the single communication line, the voltage transfer signal that is transmitted from the other of the two adjacent secondary battery protection apparatuses through the single communication line and an information element based on changes of the current value of the current transfer signal.
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3.发明申请公开(公告)号：US20200067326A1
公开(公告)日：2020-02-27
申请号：US16668408
申请日：2019-10-30
Applicant: Kohei SHIBATA
Inventor： Kohei SHIBATA
Abstract: A battery protection circuit protects a rechargeable battery from overdischarge, by turning off a transistor inserted in series in a current path between a negative electrode of the battery and a negative terminal coupled to ground of a load or a charger. A detection circuit detects a power source voltage between power source and ground terminals, and a control circuit pulls down a monitor terminal potential to a ground terminal potential by turning off the transistor and stopping battery discharge when the power source voltage lower than an overdischarge detection voltage is detected. The control circuit cancels pull-down of the monitor terminal potential to the ground terminal potential when the power source voltage higher than an overdischarge reset voltage is not detected until a predetermined time elapses in a state in which the battery discharge is stopped and the monitor terminal potential is pulled down to the ground terminal potential.
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公开(公告)号：US20190181655A1
公开(公告)日：2019-06-13
申请号：US16138226
申请日：2018-09-21
Applicant: Kohei SHIBATA
Inventor： Kohei SHIBATA
Abstract: A battery control circuit controls a balance of cell voltage values of cells coupled in series, and includes connection terminals respectively coupling to a positive electrode of a corresponding cell, a ground terminal coupled to an internal ground of the battery control circuit and coupling to a negative electrode of a cell located at a lowest stage of the cells, a control circuit to select, from the connection terminals, at least one connection terminal coupled to the internal ground via an internal current path of the battery control circuit, and a current generation circuit to supply a terminal current whose current value varies according to the cell voltage value of the cell whose positive electrode is coupled to the at least one of the connection terminals selected by the control circuit, from the at least one of the connection terminals to the internal ground via the internal current path.
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5.发明授权公开(公告)号：US10074875B2
公开(公告)日：2018-09-11
申请号：US14542720
申请日：2014-11-17
Applicant: Kohei Shibata , Hibiki Yano
Inventor： Kohei Shibata , Hibiki Yano
CPC classification number: H01M10/4257 , H01M10/44 , H02H7/18 , H02J7/0031 , H02J7/047 , H02J2007/0037
Abstract: A protection circuit for protecting a secondary battery includes a controller that closes a charging path for charging the secondary battery with a charger when a charge preventing condition is satisfied, the charging path being between a terminal of the secondary battery and an input-output terminal for connecting the charger and an electronic apparatus, opens the charging path when a discharging current from the secondary battery to the electronic apparatus is detected while the charge preventing condition is satisfied and the charging path is closed, and temporarily closes the charging path when a predetermined period of time passes after the charging path is opened, to determine whether the discharging current is flowing.
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Patent Agency Ranking
公开(公告)号：US20180076638A1
公开(公告)日：2018-03-15
申请号：US15689329
申请日：2017-08-29
Applicant: Kohei SHIBATA
Inventor： Kohei SHIBATA
IPC: H02J7/00
CPC classification number: H02J7/0036 , H02J2007/0037
Abstract: A battery control circuit that is used for a battery protecting apparatus configured to protect a secondary battery in which cells are connected in series includes: a level shift circuit configured to shift respective levels of cell voltages of the cells to generate level shift voltages; a maximum voltage output circuit including differential amplifier circuits for the respective level shift voltages, the respective differential amplifier circuits being configured to compare the corresponding level shift voltages with threshold voltages to generate output voltages, the maximum voltage output circuit being configured to simultaneously compare the output voltages to output a maximum voltage corresponding to a cell voltage whose voltage value is highest; an overcharge detecting circuit configured to detect overcharging of the secondary battery based on the maximum voltage; and a maximum voltage cell specifying circuit configured to specify, based on the output voltages, a cell whose voltage value is highest.
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公开(公告)号：US09048672B2
公开(公告)日：2015-06-02
申请号：US13570404
申请日：2012-08-09
Applicant: Kohei Shibata
Inventor： Kohei Shibata
IPC: H02J7/00 , G01R19/165
CPC classification number: H02J7/0029 , G01R19/16542 , H02J2007/004
Abstract: A semiconductor integrated circuit that protects a secondary battery by controlling an on/off status of a discharge control switch and a charge control switch includes an over discharge detection part configured to detect an over discharge condition based on a battery voltage of the secondary battery, a load removal detection part to detect whether a load connected to the secondary battery is removed based on a voltage of a load removal detection terminal connected to a negative electrode side of at least one of the load connected to the secondary battery and a battery charger through a resistor, an over discharge return part to return to a normal condition from the over discharge condition, and a control part to output a control signal for returning the over discharge condition to the normal condition to the over discharge return part upon detecting the load being removed in the over discharge condition.
Abstract translation: 通过控制放电控制开关和充电控制开关的开/关状态来保护二次电池的半导体集成电路包括：过放电检测部，被配置为基于二次电池的电池电压来检测过放电状态; 负载移除检测部分，用于检测连接到二次电池的负载中的至少一个的负载侧的负载移除检测端子的电压是否与二次电池连接的负载和电池充电器的电压相关联 电阻器，过放电返回部件从过放电状态返回到正常状态;以及控制部分，当检测到被去除的负载时，输出用于将过放电状态恢复到正常状态的控制信号到过放电返回部 处于过放电状态。
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公开(公告)号：US07706049B2
公开(公告)日：2010-04-27
申请号：US12033959
申请日：2008-02-20
Applicant: Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
Inventor： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
IPC: G02B26/00
CPC classification number: G02B6/3512 , G02B1/02 , G02B6/29311 , G02B6/29313 , G02B6/356 , G02B26/0833
Abstract: The present mirror device for suppressing PDL on the assumption of multiple modes of angles of input light and output light to movable mirrors with respect to the crystal axis of a crystal member at the time light passes through the crystal member. The mirror device includes a mirror system 2 and a flat-shaped crystal member 3 which is arranged in such a manner that a first angle is not larger than a second angle. The crystal member is constructed in such a manner that a third angle is substantially equal to a half of a fourth angle.
Abstract translation: 本反射镜装置用于在时间光通过晶体部件的情况下假定输入光的多个角度和输出光相对于晶体部件的晶轴相对于可动反射镜的抑制PDL。 镜装置包括镜子系统2和平面状的晶体构件3，其以第一角度不大于第二角度的方式布置。 晶体构件的构造使得第三角度基本上等于第四角度的一半。
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公开(公告)号：US07580599B2
公开(公告)日：2009-08-25
申请号：US12153820
申请日：2008-05-23
Applicant: Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto , Naoki Hashimoto
Inventor： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto , Naoki Hashimoto
CPC classification number: G02B6/356 , G02B5/3083 , G02B6/3512 , G02B6/3592
Abstract: An optical switch switches ports through which a beam is input and output and includes an optical system through which the beam passes; a movable reflector that is enclosed in a casing and reflects, at a variable angle, the beam that has passed through the optical system; and a transmissive window that is disposed in the casing at a position through which the beam passes, is made of a uniaxial crystal, and obtains a phase difference with respect to the beam passing therethrough having a wavelength λ. The phase difference is λ/4 times a positive odd integer and results from a setting of an orientation of a crystal axis and a thickness of the transmissive window.
Abstract translation: 光开关切换输入和输出光束的端口，并包括光束通过的光学系统; 可移动反射器，其被封装在壳体中并以可变的角度反射已经通过光学系统的光束; 并且在光束通过的位置处设置在壳体中的透射窗由单轴晶体制成，并且获得相对于通过其的具有波长λ的光束的相位差。 相位差为正奇数的λ/ 4倍，并且是由晶轴的取向和透射窗的厚度的设定产生的。
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公开(公告)号：US20080317405A1
公开(公告)日：2008-12-25
申请号：US12153820
申请日：2008-05-23
Applicant: Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto , Naoki Hashimoto
Inventor： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto , Naoki Hashimoto
CPC classification number: G02B6/356 , G02B5/3083 , G02B6/3512 , G02B6/3592
Abstract: An optical switch switches ports through which a beam is input and output and includes an optical system through which the beam passes; a movable reflector that is enclosed in a casing and reflects, at a variable angle, the beam that has passed through the optical system; and a transmissive window that is disposed in the casing at a position through which the beam passes, is made of a uniaxial crystal, and obtains a phase difference with respect to the beam passing therethrough having a wavelength λ. The phase difference is λ/4 times a positive odd integer and results from a setting of an orientation of a crystal axis and a thickness of the transmissive window.
Abstract translation: 光开关切换输入和输出光束的端口，并包括光束通过的光学系统; 可移动反射器，其被封装在壳体中并以可变的角度反射已经通过光学系统的光束; 并且在光束通过的位置处设置在壳体中的透射窗由单轴晶体制成，并且获得相对于通过其的具有波长λ的光束的相位差。 相位差为正奇数的λ/ 4倍，并且是由晶轴的取向和透射窗的厚度的设定产生的。
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