Patents by Inventor Wataru Miyashita
Wataru Miyashita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11863212Abstract: A signal processing device includes: a processor; and a memory having instructions. When executed by the processor, the instructions cause the signal processing device to perform operations including: converting a first signal that is a time domain signal into a second signal that is a frequency domain signal in response to reception of the first signal, the first signal containing noise superimposed on a broadcast electric signal derived from a broadcast electromagnetic wave, the noise having peaks of amplitude at regular frequency intervals in the frequency domain; calculating a frequency interval between the peaks of the noise in the frequency domain based on a correlation of the second signal; determining a frequency shift amount in the frequency domain based on the frequency interval; and shifting a frequency of the second signal by the frequency shift amount to create a frequency-shifted signal.Type: GrantFiled: February 25, 2022Date of Patent: January 2, 2024Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tomoyasu Fujishima, Wataru Miyashita, Shunsuke Ikeda, Takayuki Hirano
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Publication number: 20220286150Abstract: A signal processing device includes: a processor; and a memory having instructions. When executed by the processor, the instructions cause the signal processing device to perform operations including: converting a first signal that is a time domain signal into a second signal that is a frequency domain signal in response to reception of the first signal, the first signal containing noise superimposed on a broadcast electric signal derived from a broadcast electromagnetic wave, the noise having peaks of amplitude at regular frequency intervals in the frequency domain; calculating a frequency interval between the peaks of the noise in the frequency domain based on a correlation of the second signal; determining a frequency shift amount in the frequency domain based on the frequency interval; and shifting a frequency of the second signal by the frequency shift amount to create a frequency-shifted signal.Type: ApplicationFiled: February 25, 2022Publication date: September 8, 2022Inventors: Tomoyasu FUJISHIMA, Wataru MIYASHITA, Shunsuke IKEDA, Takayuki HIRANO
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Publication number: 20220197162Abstract: An object of the present invention is to provide an electrophotographic photoreceptor which can prevent an increase in potential even using a fluorine resin in a charge transport layer, and can achieve both electrical properties and abrasion resistance, and present invention relates to a lamination type electrophotographic photoreceptor, in which a charge transport layer of the lamination type electrophotographic photoreceptor contains a compound having an E_homo of ?4.550 eV or more based on structure optimization calculation by density functional calculation B3LYP/6-31G (d, p) and fluorine resin particles, and a content of the fluorine resin particles is 3% by weight to 20% by weight based on a total mass of the charge transport layer.Type: ApplicationFiled: March 11, 2022Publication date: June 23, 2022Applicant: Mitsubishi Chemical CorporationInventors: Mitsuo WADA, Wataru MIYASHITA, Takahiro CHODA, Akira ANDO, Hiroe FUCHIGAMI
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Patent number: 11307510Abstract: An object of the present invention is to provide an electrophotographic photoreceptor which can prevent an increase in potential even using a fluorine resin in a charge transport layer, and can achieve both electrical properties and abrasion resistance, and present invention relates to a lamination type electrophotographic photoreceptor, in which a charge transport layer of the lamination type electrophotographic photoreceptor contains a compound having an E_homo of ?4.550 eV or more based on structure optimization calculation by density functional calculation B3LYP/6-31G (d, p) and fluorine resin particles, and a content of the fluorine resin particles is 3% by weight to 20% by weight based on a total mass of the charge transport layer.Type: GrantFiled: July 25, 2019Date of Patent: April 19, 2022Assignee: Mitsubishi Chemical CorporationInventors: Mitsuo Wada, Wataru Miyashita, Takahiro Choda, Akira Ando, Hiroe Fuchigami
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Patent number: 11296741Abstract: A receiving device includes: a frequency mixer that converts a frequency of a reception signal to a baseband; an envelope demodulator; an upper sideband demodulator; and a lower sideband demodulator. Each of the envelope demodulator, the upper sideband demodulator and the lower sideband demodulator demodulates an output from the frequency mixer. The receiving device further includes: a first adder that adds an output from the envelope demodulator and an inverted output obtained by inverting an output from the upper sideband demodulator; a second adder that adds the output from the envelope demodulator and an inverted output obtained by inverting an output from the lower sideband demodulator; and a third adder that adds the output from the envelope demodulator, an inverted output obtained by inverting an output from the first adder, and an inverted output obtained by inverting an output from the second adder, to output a demodulation signal.Type: GrantFiled: September 15, 2020Date of Patent: April 5, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yohei Asada, Tomoyasu Fujishima, Wataru Miyashita
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Publication number: 20200412399Abstract: A receiving device includes: a frequency mixer that converts a frequency of a reception signal to a baseband; an envelope demodulator; an upper sideband demodulator; and a lower sideband demodulator. Each of the envelope demodulator, the upper sideband demodulator and the lower sideband demodulator demodulates an output from the frequency mixer. The receiving device further includes: a first adder that adds an output from the envelope demodulator and an inverted output obtained by inverting an output from the upper sideband demodulator; a second adder that adds the output from the envelope demodulator and an inverted output obtained by inverting an output from the lower sideband demodulator; and a third adder that adds the output from the envelope demodulator, an inverted output obtained by inverting an output from the first adder, and an inverted output obtained by inverting an output from the second adder, to output a demodulation signal.Type: ApplicationFiled: September 15, 2020Publication date: December 31, 2020Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yohei ASADA, Tomoyasu FUJISHIMA, Wataru MIYASHITA
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Patent number: 10599057Abstract: An electrophotographic photoreceptor that includes a conductive support; and at least a charge generation layer and a charge transport layer on the conductive support, where the charge transport layer includes at least two layers of a first charge transport layer which is an outermost layer and a second charge transport layer which is in contact with the first charge transport layer, such that the elastic deformation ratio of a binder resin A contained in the first charge transport layer is T1(%) and the elastic deformation ratio of a binder resin B contained in the second charge transport layer is T2(%) such that T1 and T2 satisfy a relationship of {0?(T1?T2)?4}, the first charge transport layer contains a charge transport material ? having a molecular weight of 600 or more, and the binder resin A and the binder resin B have different monomer units from each other.Type: GrantFiled: March 28, 2019Date of Patent: March 24, 2020Assignee: Mitsubishi Chemical CorporationInventors: Akiteru Fujii, Yuka Nagao, Wataru Miyashita
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Publication number: 20190346779Abstract: An object of the present invention is to provide an electrophotographic photoreceptor which can prevent an increase in potential even using a fluorine resin in a charge transport layer, and can achieve both electrical properties and abrasion resistance, and present invention relates to a lamination type electrophotographic photoreceptor, in which a charge transport layer of the lamination type electrophotographic photoreceptor contains a compound having an E_homo of ?4.550 eV or more based on structure optimization calculation by density functional calculation B3LYP/6-31G (d, p) and fluorine resin particles, and a content of the fluorine resin particles is 3% by weight to 20% by weight based on a total mass of the charge transport layer.Type: ApplicationFiled: July 25, 2019Publication date: November 14, 2019Applicant: Mitsubishi Chemical CorporationInventors: Mitsuo WADA, Wataru Miyashita, Takahiro Choda, Akira Ando, Hiroe Fuchigami
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Publication number: 20190219937Abstract: The present invention aims to provide an electrophotographic photoreceptor including a charge transport layer and being excellent in electrical properties and adhesiveness while exhibiting sufficient abrasion resistance indispensable for prolonging the life, and an electrophotographic photoreceptor cartridge and an image forming apparatus including the electrophotographic photoreceptor, which is an electrophotographic photoreceptor including a charge transport layer including at least two layers, wherein an elastic deformation ratio of a binder resin contained in a first charge transport layer which is an outermost layer and an elastic deformation ratio of a binder resin contained in a second charge transport layer satisfy a predetermined relationship.Type: ApplicationFiled: March 28, 2019Publication date: July 18, 2019Applicant: Mitsubishi Chemical CorporationInventors: Akiteru FUJII, Yuka NAGAO, Wataru MIYASHITA
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Patent number: 10203616Abstract: The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).Type: GrantFiled: June 14, 2017Date of Patent: February 12, 2019Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Atsushi Yoshizawa, Wataru Miyashita, Mitsuo Wada, Akiteru Fujii, Takayuki Shouda
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Publication number: 20170285498Abstract: The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).Type: ApplicationFiled: June 14, 2017Publication date: October 5, 2017Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Atsushi YOSHIZAWA, Wataru MIYASHITA, Mitsuo WADA, Akiteru FUJII, Takayuki SHOUDA
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Publication number: 20160011560Abstract: There is provided a method for detaching a shaft member swingably held by a bearing member from the bearing member which transmits a rotating force to a photoreceptor drum, wherein the shaft member includes a base end section received inside the bearing member, a rotating force transmission pin which protrudes from the base end section, and a rotating force receiving section which is disposed to protrude from the bearing member, and the method includes a process of detaching the shaft member from the bearing member by a force acting on the base end section.Type: ApplicationFiled: September 23, 2015Publication date: January 14, 2016Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinichi IIJIMA, Shuichi Ikeda, Wataru Miyashita, Susumu Taguchi, Takeshi Hiramatsu
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Publication number: 20100035223Abstract: A medical training apparatus that is capable of recording a training history based on a medical training scenario and storing an evaluation of training that corresponds to the training history is provided. The medical training apparatus includes a training-history-information storage unit, an evaluation input unit, an operation unit, and a training-evaluation-information storage unit. The training-history-information storage unit stores history information about a training session that has been performed under a preset medical training scenario. The evaluation input unit inputs an evaluation result for either the training session or the history information stored in the training-history-information storage unit, with respect to a predetermined evaluation item for each predetermined matter. The operation unit performs an arithmetic operation on the evaluation result that has been input with the evaluation input unit.Type: ApplicationFiled: July 27, 2009Publication date: February 11, 2010Inventors: Naotake Shibui, Satoshi Uzuka, Wataru Miyashita, Hitoshi Akiyama, Setsuhiro Hara, Kazuo Nishikawa, Mikinori Nishimura, Yukihiko Isokawa