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1. 发明申请

US20230135564A1 NMR Measurement Apparatus 有权
公开(公告)号：US20230135564A1
公开(公告)日：2023-05-04
申请号：US17974678
申请日：2022-10-27
申请人： JEOL Ltd.
发明人： Kenichi Hachitani , Nobuaki Nemoto , Junpei Hamatsu , Fumihiro Yamazaki , Takayuki Suzuki
IPC分类号： G01R33/46
摘要： In a frequency converter, a transmission signal having a first frequency component and a second frequency component is multiplied by a local signal, to thereby frequency-convert the transmission signal. In a power amplifier, the frequency-converted transmission signal is amplified. A demultiplexing circuit generates a first transmission signal and a second transmission signal from the amplified transmission signal. A controller is configured to set for a transmission section a frequency set suitable for two irradiation frequencies.

2. 发明授权

US10302721B2 Magnetic resonance measurement apparatus with improved instruction sequence transfer 有权
公开(公告)号：US10302721B2
公开(公告)日：2019-05-28
申请号：US14805796
申请日：2015-07-22
申请人： JEOL Ltd.
发明人： Kenichi Hachitani , Kenya Izumi , Yukio Nishimura , Takayuki Suzuki
IPC分类号： G01R33/46 , G01R33/36 , G01R33/54
摘要： Procedure instruction sequences (P1˜PN) in an instruction sequence (for example, an instruction sequence for an NMR spectrometer) are generated in a precedential manner, and transferred to a procedure storage area on a transmission and reception unit in a precedential manner. After the precedential transfer, a remaining portion of the instruction sequence (streaming instruction sequence (SM1, . . . )) is sequentially generated in predetermined units from the beginning, and sequentially transferred to a FIFO area on the transmission and reception unit. A sequencer refers to the streaming instruction sequence, executes the instruction, and refers to a procedure instruction sequence on the procedure storage area.

3. 发明申请

US20180031657A1 Relaxation Time Measuring Method and Magnetic Resonance Measuring Apparatus 审中-公开
公开(公告)号：US20180031657A1
公开(公告)日：2018-02-01
申请号：US15660106
申请日：2017-07-26
申请人： Kyoto University , JEOL Ltd.
发明人： Kazuyuki Takeda , Takayuki Suzuki
IPC分类号： G01R33/50 , G01R33/44 , G01R33/30 , G01R33/56 , G01R33/54
CPC分类号： G01R33/50 , G01R33/30 , G01R33/345 , G01R33/44 , G01R33/448 , G01R33/54 , G01R33/5602 , G01R33/60
摘要： A method includes forming N spin-cavity coupling states that are mutually different in coupling state between a cavity accommodating a sample therein and a spin of the sample, calculating N values of spin-cavity coupling constant, measuring N values of apparent relaxation time through magnetic resonance measurement applied on the sample, and calculating relaxation time corresponding to specific spin-cavity coupling constant based on the relationship between the N values of spin-cavity coupling constant and the N values of apparent relaxation time.

4. 发明授权

US10295632B2 Apparatus and method for processing reception signal in magnetic resonance measurement apparatus 有权
公开(公告)号：US10295632B2
公开(公告)日：2019-05-21
申请号：US14805731
申请日：2015-07-22
申请人： JEOL Ltd.
发明人： Kenichi Hachitani , Takeshi Tsukada , Tetsuro Sugita , Takayuki Suzuki
IPC分类号： G01R33/46 , G01R33/36
摘要： In a magnetic resonance measurement apparatus such as an NMR measurement apparatus, when a frequency of an observation nucleus falls within a high frequency band, an RF reception signal is converted into an intermediate frequency signal, and is input to an analog-to-digital converter. In this case, under-sampling is executed for the intermediate frequency signal in the analog-to-digital converter, and a second-order aliased signal component generated from a target signal component is observed. On the other hand, when the frequency of the observation nucleus falls within a low frequency band, over-sampling for the RF reception signal is executed.

5. 发明授权

US10288707B2 Relaxation time measuring method and magnetic resonance measuring apparatus 有权
公开(公告)号：US10288707B2
公开(公告)日：2019-05-14
申请号：US15660106
申请日：2017-07-26
申请人： Kyoto University , JEOL Ltd.
发明人： Kazuyuki Takeda , Takayuki Suzuki
IPC分类号： G01R33/50 , G01R33/56 , G01R33/54 , G01R33/30 , G01R33/44
摘要： A method includes forming N spin-cavity coupling states that are mutually different in coupling state between a cavity accommodating a sample therein and a spin of the sample, calculating N values of spin-cavity coupling constant, measuring N values of apparent relaxation time through magnetic resonance measurement applied on the sample, and calculating relaxation time corresponding to specific spin-cavity coupling constant based on the relationship between the N values of spin-cavity coupling constant and the N values of apparent relaxation time.

6. 发明授权

US10036797B2 Electron spin resonance apparatus 有权
公开(公告)号：US10036797B2
公开(公告)日：2018-07-31
申请号：US14874757
申请日：2015-10-05
申请人： JEOL Ltd.
发明人： Takayuki Suzuki
IPC分类号： G01R33/60 , G01R33/32 , G01R33/36
CPC分类号： G01R33/60 , G01R33/323 , G01R33/3621
摘要： A pulse pattern forming a pulse sequence is repeatedly generated according to a repetition frequency Fp, and an original pulse train is generated. A modulation signal which repeats ON and OFF states at a modulation frequency Fm is generated. Fp and Fm are in a relationship Fp=2n×Fm, wherein n is an integer greater than or equal to 1. The original pulse train is modulated according to the modulation frequency Fm, and a pulse train signal is generated. A microwave signal is modulated by the pulse train signal and is supplied to an electron spin resonance chamber. By executing a lock-in demodulation on a detection signal reflecting electron spin resonance using the modulation frequency Fm, an ESR signal is obtained.

7. 发明申请

US20160097832A1 Electron Spin Resonance Apparatus 审中-公开
标题翻译：电子自旋共振仪
公开(公告)号：US20160097832A1
公开(公告)日：2016-04-07
申请号：US14874757
申请日：2015-10-05
申请人： JEOL Ltd.
发明人： Takayuki Suzuki
IPC分类号： G01R33/60 , G01R33/30
CPC分类号： G01R33/60 , G01R33/323 , G01R33/3621
摘要： A pulse pattern forming a pulse sequence is repeatedly generated according to a repetition frequency Fp, and an original pulse train is generated. A modulation signal which repeats ON and OFF states at a modulation frequency Fm is generated. Fp and Fm are in a relationship Fp=2n×Fm, wherein n is an integer greater than or equal to 1. The original pulse train is modulated according to the modulation frequency Fm, and a pulse train signal is generated. A microwave signal is modulated by the pulse train signal and is supplied to an electron spin resonance chamber. By executing a lock-in demodulation on a detection signal reflecting electron spin resonance using the modulation frequency Fm, an ESR signal is obtained.
摘要翻译：根据重复频率Fp重复产生形成脉冲序列的脉冲图案，并且产生原始脉冲串。产生以调制频率Fm重复ON和OFF状态的调制信号。 Fp和Fm处于关系Fp = 2n×Fm，其中n是大于或等于1的整数。根据调制频率Fm对原始脉冲序列进行调制，并产生脉冲串信号。微波信号由脉冲序列信号调制并提供给电子自旋共振腔。通过使用调制频率Fm对反映电子自旋共振的检测信号进行锁定解调，得到ESR信号。

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