Patents by Inventor Masahiro Matsui
Masahiro Matsui 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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Publication number: 20240145356Abstract: A lead frame includes a plurality of lead portions. At least a part of an upper surface of the lead portion and a sidewall surface of the lead portion is a rough surface having been subjected to roughening treatment. A value of a* in a CIELab color space of the rough surface is within a range from 12 to 19, and a value of b* is within a range from 12 to 17.Type: ApplicationFiled: September 1, 2022Publication date: May 2, 2024Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Masahiro NAGATA, Kazuhiro SHINOZAKI, Masahiro YAMADA, Daisuke OKUYAMA, Chiaki HATSUTA, Kentarou SEKI, Hideto MATSUI, Kazunori OOUCHI
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Publication number: 20240071248Abstract: A computer-readable recording medium stores therein a program causing a computer to execute a process including: obtaining information related to a learning target and learning subjects from a user; calculating, based on the obtained learning target and learning subjects, a learning volume including a first learning time to complete learning the subjects within a total period and generating, based on the learning volume, a long-term learning plan including the first learning time for courses in each of the subjects; generating, for each course, a short-term plan in which, based on the generated long-term plan, a second learning time predicted for each course, for a period shorter than that of the long-term plan is calculated; presenting, to the user, the courses to learn daily; and calculating, in each predetermined period, a difference of the second learning time and an actual learning time, calculating, according to a learning status of the user, a third learning time necessary to complete the learning withType: ApplicationFiled: April 27, 2023Publication date: February 29, 2024Applicant: JustSystems CorporationInventors: Kei SUZUKI, Kentaro MATSUI, Masahiro HATTORI
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Patent number: 11483145Abstract: A key exchange device is provided that includes: a shared secret key storage in which shared secret information mkik which is information different from a secret key of the key exchange device is stored; an authentication information addition unit that generates authentication information ?i, by which authentication is performed and falsification is detected, for key exchange information ei, which is output to the outside, by using the shared secret information mkik; and an authentication information verification unit that receives key exchange information es and authentication information ?s corresponding to the key exchange information es from the outside, verifies the authentication information ?s using the shared secret information mkik, and, if the authentication information ?s is not successfully verified, stops a key exchange, and the shared secret information mkik is a value that is used in a generation process in a key exchange.Type: GrantFiled: November 9, 2018Date of Patent: October 25, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Masahiro Matsui, Yuki Okano, Tetsutaro Kobayashi, Reo Yoshida
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Patent number: 11384220Abstract: Provided is a white resin composition that can maintain a high degree of whiteness even after undergoing a thermal resistance test. A white resin composition contains: a white pigment; a surface-treated calcium carbonate in which particle surfaces of a synthetic calcium carbonate with an average particle diameter of 0.05 to 1 ?m are subjected to surface treatment with a condensed phosphoric acid and an organic modified silicone oil; and a resin, wherein a content ratio between the white pigment and the surface-treated calcium carbonate is, in mass ratio (white pigment to surface-treated calcium carbonate), within a range of 90:10 to 60:40, and a total content of the white pigment and the surface-treated calcium carbonate in the resin composition is within a range of 5 to 70% mass.Type: GrantFiled: October 17, 2016Date of Patent: July 12, 2022Assignee: SHIRAISHI KOGYO KAISHA, LTD.Inventors: Kenichiro Eguchi, Yutaka Minamino, Masahiro Matsui
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Patent number: 10995200Abstract: Provided are a kaolin clay for a thermoplastic resin composition that can provide high impact strength and glossiness and a thermoplastic resin composition containing the same. A kaolin clay for a thermoplastic resin composition is subjected to a surface treatment with 0.2 to 10 parts by mass of at least one selected from the group consisting of methyl silicate, ethyl silicate, propyl silicate, and butyl silicate relative to 100 parts by mass of the kaolin clay.Type: GrantFiled: May 31, 2017Date of Patent: May 4, 2021Assignee: SHIRAISHI KOGYO KAISHA, LTD.Inventors: Kenichiro Eguchi, Yutaka Minamino, Ruriko Nakagawa, Kosuke Kawai, Masahiro Matsui
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Publication number: 20200274704Abstract: On the assumption that i?s, j is the number of times a key exchange is performed, and k is any one of integers greater than or equal to 0 and less than j, a key exchange device includes: a shared secret key storage in which shared secret information mkik which is information different from a secret key of the key exchange device is stored; an authentication information addition unit that generates authentication information ?i, by which authentication is performed and falsification is detected, for key exchange information ei, which is output to the outside, by using the shared secret information mkik; and an authentication information verification unit that receives key exchange information es and authentication information ?s corresponding to the key exchange information es from the outside, verifies the authentication information ?s using the shared secret information mkik, and, if the authentication information ?s is not successfully verified, stops a key exchange, and the shared secret information mkik iType: ApplicationFiled: November 9, 2018Publication date: August 27, 2020Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Masahiro MATSUI, Yuki OKANO, Tetsutaro KOBAYASHI, Reo YOSHIDA
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Publication number: 20200040158Abstract: Provided is a white resin composition that can maintain a high degree of whiteness even after undergoing a thermal resistance test. A white resin composition contains: a white pigment; a surface-treated calcium carbonate in which particle surfaces of a synthetic calcium carbonate with an average particle diameter of 0.05 to 1 ?m are subjected to surface treatment with a condensed phosphoric acid and an organic modified silicone oil; and a resin, wherein a content ratio between the white pigment and the surface-treated calcium carbonate is, in mass ratio (white pigment to surface-treated calcium carbonate), within a range of 90:10 to 60:40, and a total content of the white pigment and the surface-treated calcium carbonate in the resin composition is within a range of 5 to 70% mass.Type: ApplicationFiled: October 17, 2016Publication date: February 6, 2020Applicant: SHIRAISHI KOGYO KAISHA, LTD.Inventors: Kenichiro Eguchi, Yutaka Minamino, Masahiro Matsui
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Publication number: 20190177512Abstract: Provided are a kaolin clay for a thermoplastic resin composition that can provide high impact strength and glossiness and a thermoplastic resin composition containing the same. A kaolin clay for a thermoplastic resin composition is subjected to a surface treatment with 0.2 to 10 parts by mass of at least one selected from the group consisting of methyl silicate, ethyl silicate, propyl silicate, and butyl silicate relative to 100 parts by mass of the kaolin clay.Type: ApplicationFiled: May 31, 2017Publication date: June 13, 2019Applicant: SHIRAISHI KOGYO KAISHA, LTD.Inventors: Kenichiro Eguchi, Yutaka Minamino, Ruriko Nakagawa, Kosuke Kawai, Masahiro Matsui
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Publication number: 20140244323Abstract: A determination unit determines whether or not a number of desiring users who want to apply to reserve or buy the same product or service is equal to or smaller than an upper limit number. A reception order setting unit sets a reception order for receiving an application from each of the desiring users. In a case where the number of the desiring users is not equal to or smaller than the upper limit number, a first reception unit selects the number of users equal to or smaller than the upper limit number from among the desiring users, based on the reception order, and receives an application from each of the selected users. Meanwhile, in a case where the number of the desiring users is equal to or smaller than the upper limit number, a second reception unit receives an application from each of the desiring users.Type: ApplicationFiled: February 24, 2014Publication date: August 28, 2014Applicant: Rakuten, Inc.Inventors: Kenta MATSUI, Misato TAKAHASHI, Moriyoshi KOIZUMI, Shin AOYAMA, Masahiro MATSUI
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Publication number: 20140244322Abstract: A reception order setting unit sets an order for receiving an application from a first user. A reception standby unit holds start of reception of the application on standby, based on the order. An estimated reception start time and date information obtaining unit obtains estimated reception start time and date information on an estimated time and date at which reception of the application will be started, based on the order. A presentation unit presents to the first user the estimated reception start time and date information. The estimated reception start time and date information obtaining unit updates the estimated reception start time and date information, based on a reception completion state concerning an application from a second user with an earlier order than the order of the first user. The presentation unit is able to present to the first user the estimated reception start time and date information updated.Type: ApplicationFiled: February 24, 2014Publication date: August 28, 2014Applicant: Rakuten, Inc.Inventors: Kenta MATSUI, Misato TAKAHASHI, Moriyoshi KOIZUMI, Shin AOYAMA, Masahiro MATSUI
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Publication number: 20050089580Abstract: An object of the present invention is to provide an antibacterial glass composition and an antibacterial resin composition which are less likely to cause secondary aggregation of an antibacterial glass during molding or other processes. The antibacterial glass composition comprises an antibacterial glass and an inorganic dispersible filler. The antibacterial resin composition comprises an antibacterial glass, an inorganic dispersible filler and a resin. Also the present invention provides a method for producing an antibacterial resin composition, comprising mixing an antibacterial glass composition with a resin together and molding the mixture, said method being characterized by the addition of an inorganic dispersible filler.Type: ApplicationFiled: October 5, 2004Publication date: April 28, 2005Applicants: Kanebo, Ltd., Kanebo Chemical Industries, Ltd.Inventor: Masahiro Matsui
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Patent number: 6768175Abstract: When a SOI substrate is produced a first silicon layer epitaxially grown on the insulating underlay is ion implanted to make deep part of interface of the silicon layer amorphous, and then annealed to recrystallize. Next, the silicon layer is heat treated to oxidize part of the surface side, and after the silicon oxide is removed by etching, a silicon layer is epitaxially grown on the remaining first silicon layer to form a second silicon layer. Subsequently, the second silicon layer is again ion implanted to make deep part of interface amorphous, then annealing is performed to recrystallize. With this method, a SOI substrate, which is very small in crystal defect density of the silicon layer and good in surface flatness, can be produced. Therefore, on the semiconductor substrate an electronic device or optical device having high device performance and reliability can be realized.Type: GrantFiled: March 23, 2001Date of Patent: July 27, 2004Assignee: Asahi Kasei Kabushiki KaishaInventors: Takashi Morishita, Masahiro Matsui
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Patent number: 6528387Abstract: When producing an SOS substrate by growing a silicon layer on a sapphire substrate, or when producing an SOI substrate by depositing an oxide layer or a fluoride layer, as an intermediate layer, on a silicon substrate, and growing a silicon layer on the deposited layer, (A) after growth of the silicon layer, heat treatment is performed in an oxidizing atmosphere to oxidize a part of a surface side of the silicon layer, and the resulting silicon oxide layer is removed by etching with hydrofluoric acid. (B) With this silicon layer as a seed layer, a silicon layer is regrown homoepitaxially thereon.Type: GrantFiled: December 20, 1999Date of Patent: March 4, 2003Assignee: Asahi Kasei Kabushiki KaishaInventors: Yoshitaka Moriyasu, Takashi Morishita, Masahiro Matsui, Makoto Ishida
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Patent number: 5554449Abstract: A high luminance thin-film electroluminescent device comprising a phosphor layer comprising SrS as the host material and a luminous center. The phosphor layer is sandwiched between two insulating layers and two thin-film electrodes are provided on each side of the insulating layers. At least one of the electrodes is transparent, and the excitation spectrum of the phosphor layer exhibits a peak having a maximum value at a wavelength of about from 350 nm to 370 nm. Such a high luminance thin-film electroluminescent device can be prepared by annealing its phosphor layer comprising SrS as the host material at a temperature of at least 650 .degree. C. for at least one hour in an atmosphere of a sulfur-containing gas.Type: GrantFiled: November 18, 1994Date of Patent: September 10, 1996Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Shoichiro Tonomura, Masahiro Matsui, Takashi Morishita
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Patent number: 5184038Abstract: A magnetic pole position detecting device is coupled with a brushless dc motor by determining the angular positional relationship between an input shaft of a rotor, a detecting device body, and a locating mark formed on a detecting device casing by outputting absolute values indicative of the angular position of the rotor, coupling an output shaft of the brushless dc motor with the rotor of the detecting device, driving the dc motor externally, and forming another locating mark on the motor casing in alignment with the locating mark formed on the detecting device casing, under a condition in which the angular positional relationship between the motor casing and the detecting device casing is so determined that motor induced voltage is in phase with waveform of the absolute values output. Therefore, it is possible to easily replace the magnetic pole position detecting device with a new one in a short time at any job site, independently from the motor.Type: GrantFiled: February 20, 1992Date of Patent: February 2, 1993Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Masahiro Matsui, Yasuhiko Hashimoto
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Patent number: 3955906Abstract: Method and system for transporting a filament-bundle from a spinning process to a successive drawing process in a factory of producing synthetic filament yarns. The filament bundle is transported by means of can-transportation system between two desired positions along a fixed carrying passage automatically. Full packaged cans filled with the filament bundle are transported along the fixed carrying passage by a carrying means from a receiving position below a delivery mechanism of a spinning equipment to a creeling passage adjacent to a creel of a drawing equipment, and empty cans are carried from the creeling passage to a reserving position along a fixed passage for the carrying means and thereafter carried to the above-mentioned receiving position one by one. The motion of the carrying means is controlled by a control means involving a control computer.Type: GrantFiled: August 19, 1974Date of Patent: May 11, 1976Assignee: Teijin LimitedInventors: Yasuhiro Murase, Mitsuji Ito, Nobuharu Izawa, Masahiro Matsui