Patents Assigned to FEMTO DEPLOYMENTS INC.
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Patent number: 12174113Abstract: A terahertz-wave signal input unit 11 configured to input a terahertz-wave signal from a spectroscopic apparatus 200 for detecting a terahertz wave acting on a photoresist, and a terahertz-wave signal analysis unit 12 configured to analyze a terahertz-wave signal input by the terahertz-wave signal input unit 11 to acquire characteristic information of the photoresist are included, and spectroscopic processing using a terahertz wave is performed on a photoresist to acquire characteristic information of the photoresist (a characteristic value or a correlation characteristic indicating a relationship between a plurality of elements including the characteristic value).Type: GrantFiled: September 28, 2020Date of Patent: December 24, 2024Assignee: FEMTO Deployments Inc.Inventors: Akira Watanabe, Tadashi Okuno, Takeji Ueda
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Patent number: 12072285Abstract: The invention is configured to include a spectroscopy cell 100 as a container including one or more spaces, each of which has a plate shape and contains a to-be-measured object that transmits or reflects a terahertz wave; and a holder 6 including one or more first holder through-holes 6b and 6c disposed at positions corresponding to the spaces of the spectroscopy cell 100, each of the spaces containing the to-be-measured object. A body portion 1 of the spectroscopy cell 100 is made of a resin material that transmits the terahertz wave, and the spectroscopy cell 100 is loaded into the holder 6 and is used. The holder 6 has a function of holding the spectroscopy cell 100, and a function of correcting one or more of a distortion, a twist, and a bending of the spectroscopy cell 100.Type: GrantFiled: April 1, 2021Date of Patent: August 27, 2024Assignee: FEMTO Deployments Inc.Inventors: Akira Watanabe, Tadashi Okuno, Takeji Ueda
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Patent number: 11680896Abstract: An electromagnetic signal analysis apparatus includes a frequency spectrum obtaining unit 11 to obtain a frequency spectrum that is generated based on an electromagnetic signal obtained by a spectral device 20 and represents a property value with respect to a frequency, a water vapor fitting processing unit 12 to fit a waveform of a single fitting function or a composite waveform, of a plurality of fitting functions to a frequency spectrum at a frequency at which absorption of the electromagnetic waves by water vapor is increased, and a property analyzing unit 14 to analyze a property of a liquid sample using at least two values that determine a characteristic of the fitting function used for the fitting, so that the frequency spectrum, at the frequency at which absorption of the electromagnetic waves by water vapor generated from surfaces of the liquid sample is increased is processed to analyze the property of the liquid sample.Type: GrantFiled: October 8, 2020Date of Patent: June 20, 2023Assignee: FEMTO DEPLOYMENTS INC.Inventors: Akira Watanabe, Tadashi Okuno, Takeji Ueda
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Patent number: 11181474Abstract: A terahertz wave signal analysis device includes a fitting processing unit 13 that fits synthetic waveforms of a plurality of normal distribution functions which differ in at least one of a center frequency, an amplitude, and a width to a frequency spectrum obtained from a terahertz wave signal and a graph generating unit 14 that generates a graph using at least one of a center frequency, an amplitude, and a width of a plurality of normal distribution functions used in the fitting as parameters, and it is possible to visualize a feature corresponding to a characteristic of a sample in the form of a graph in an easy-to-understand manner by approximating a frequency spectrum which does not clearly appear because a difference in the characteristic of the sample becomes a feature of a waveform by synthetic waveforms of a plurality of normal distribution functions in a form in which the characteristic of the sample is taken over and generating a graph on the basis of parameters of a plurality of normal distributioType: GrantFiled: December 11, 2017Date of Patent: November 23, 2021Assignee: FEMTO Deployments Inc.Inventors: Akira Watanabe, Tadashi Okuno, Takeji Ueda
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Patent number: 10724941Abstract: A liquid membrane 100 is formed by jetting a liquid sucked from a recovery reservoir 11a and pressurized using a pump 12 from a nozzle of a liquid membrane cartridge 20. The formed liquid membrane 100 makes contact with a slope wall of the liquid membrane cartridge 20 along a surface of the liquid membrane 100. The liquid running down from the slope wall is recovered and stored in the recovery reservoir 11a in order to recover the liquid running down along the slope wall in a decelerated state into the recovery reservoir 11a. As a result, it is possible to prevent air bubbles from being generated by agitation of a liquid of the recovery reservoir 11a when the liquid enters the recovery reservoir 11a.Type: GrantFiled: February 7, 2017Date of Patent: July 28, 2020Assignee: FEMTO Deployments, Inc.Inventors: Akira Watanabe, Bunpei Doi
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Patent number: 10352849Abstract: A terahertz wave is spectrally dispersed into two waves which are caused to pass through a sample liquid film 101 and a reference liquid film 102 and are then collected, and the terahertz waves in an interference state are detected by a terahertz wave detecting semiconductor 15. Consequently, only spectroscopic information related to a distinctive characteristic of the sample liquid film 101 is detected. In addition, a predetermined optical path length difference is provided between a path where the terahertz wave is transmitted through the sample liquid film 101 and a path where the terahertz wave is transmitted through the reference liquid film 102 by an optical delaying unit 17.Type: GrantFiled: July 21, 2017Date of Patent: July 16, 2019Assignee: FEMTO DEPLOYMENTS INC.Inventors: Akira Watanabe, Tadashi Okuno, Takeji Ueda
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Patent number: 10295461Abstract: There are provided a terahertz wave spectral dispersing unit 13 for spectrally dispersing a terahertz wave to be generated from a terahertz wave generating semiconductor 12 into two waves, a terahertz wave focusing unit 14 for focusing a terahertz wave transmitted through a sample liquid film 101 and a terahertz wave transmitted through a reference liquid film 102, and a terahertz wave detecting semiconductor 15 for detecting the focused terahertz wave, and it is possible to detect the terahertz wave transmitted through the sample liquid film 101 and the terahertz wave transmitted through the reference liquid film 102 in an interference state, thereby offsetting a noise made by a stripe-shaped wave generated on the sample liquid film 101 and a noise made by a stripe-shaped wave generated on the reference liquid film 102.Type: GrantFiled: October 18, 2016Date of Patent: May 21, 2019Assignee: FEMTO DEPLOYMENTS INC.Inventors: Akira Watanabe, Takeji Ueda, Tadashi Okuno