Patents by Inventor Tatsuya Oku
Tatsuya Oku 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: 11841611Abstract: A projector includes a light source device, a homogenization optical element, a polarization conversion element, a liquid crystal panel, an incident side polarization plate, an exit side polarization plate, a projection optical system, a first housing, a second housing, a first heat-transfer section, a second heat-transfer section, a first fan configured to feed an air current toward the first heat-transfer section and the second heat-transfer section, and a first duct in which the first heat-transfer section and the second heat-transfer section are disposed.Type: GrantFiled: September 28, 2022Date of Patent: December 12, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Tatsuya Oku, Norikazu Kadotani
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Publication number: 20230102817Abstract: A projector includes a light source device, a homogenization optical element, a polarization conversion element, a liquid crystal panel, an incident side polarization plate, an exit side polarization plate, a projection optical system, a first housing, a second housing, a first heat-transfer section, a second heat-transfer section, a first fan configured to feed an air current toward the first heat-transfer section and the second heat-transfer section, and a first duct in which the first heat-transfer section and the second heat-transfer section are disposed.Type: ApplicationFiled: September 28, 2022Publication date: March 30, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Tatsuya OKU, Norikazu KADOTANI
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Publication number: 20220251260Abstract: A propylene-ethylene-?-olefin copolymer satisfying: (I) a content of a propylene-derived constituent unit (i) is 50 to 92 mol %, a content of an ethylene-derived constituent unit (ii) is 5 to 20 mol %, and a content of a C4-20 ?-olefin-derived constituent unit (iii) is 3 to 30 mol %, provided that (i) to (iii) total 100 mol %; (II) an mm fraction calculated by 13C-NMR is 85% or more; (III) 0.9?MOE/(2MO×ME)?1.5 wherein MOE represents a mole fraction of chains of propylene and ethylene and chains of the C4-20 ?-olefin and ethylene in total to the total dyad, MO represents mole fractions of propylene and the C4-20 ?-olefin in total, and ME represents a mole fraction of ethylene; (IV) an MFR is 1 to 3 g/10 minutes; and (V) a melting point measured by DSC is less than 100° C., or no melting peak is observed.Type: ApplicationFiled: May 28, 2020Publication date: August 11, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Takahiro MIZUMA, Tatsuya OKU, Nozomi KAMIYA, Kiminori NODA, Tetsuya NAKAMURA, Makoto EGAWA, Yuki KAI, Hiroshi HOYA
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Patent number: 10896988Abstract: A laminated sheet of a two-layer sheet in which an L1 layer including 50 to 99 parts by mass of an ethylene-based polymer (E1) having a density of 0.890 to 970 kg/m3 and 1 to 50 parts by mass of a propylene-based polymer (P1) is in contact with an L2 layer including 50 to 100 parts by mass of a propylene-based polymer (P2) and 0 to 50 parts by mass of an ethylene-based elastomer (E2) having a density of equal to or more than 850 kg/m3 and less than 890 kg/m3, in which the propylene-based polymer (P1) includes a propylene-based elastomer (P1a) including a propylene-derived constitutional unit and an ethylene-derived constitutional unit and/or a constitutional unit derived from an ?-olefin having 4 to 20 carbon atoms, and having a melting point (Tm) that is lower than 120° C. or not observable; and a solar cell backsheet formed using the same.Type: GrantFiled: January 12, 2017Date of Patent: January 19, 2021Assignee: MITSUI CHEMICALS, INC.Inventors: Koya Yoshimoto, Kiminori Noda, Makoto Egawa, Tatsuya Oku
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Publication number: 20200282709Abstract: A resealable packaging container, which is a resealable package including a lid material that uses a multilayer film including three layers in which a substrate layer (A), an intermediate layer (B), and a heat seal layer (C) are laminated in the sequence (A)/(B)/(C); and a bottom material that uses a single-layer or multilayer sheet having an adherend (D) that can adhere to the heat seal layer (C), wherein the substrate layer (A), the intermediate layer (B), and the heat seal layer (C) all include a polyolefin resin, and when the heat seal layer (C) and the adherend (D) are heat-sealed to form a heat seal part, and the multilayer film is subsequently peeled from the heat seal part, the intermediate layer (B) and the heat seal layer (C) are delaminated and exposed in a resealable state.Type: ApplicationFiled: February 2, 2017Publication date: September 10, 2020Applicant: MITSUI CHEMICALS, INC.Inventors: Tatsuya OKU, Shinya TANAKA, Makoto EGAWA
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Patent number: 10639871Abstract: A laminate film (30) of the present invention includes a heat sealing layer (10) composed of a resin composition including, with respect to 20 to 95 parts by weight of a propylene-based polymer (A) having a melting point (Tm) of equal to or higher than 120° C. and equal to or lower than 170° C. as measured by differential scanning calorimetry (DSC), a total of 5 to 80 parts by weight of two or more kinds of copolymers selected from the group consisting of a propylene.Type: GrantFiled: August 21, 2015Date of Patent: May 5, 2020Assignee: MITSUI CHEMICALS, INC.Inventors: Tatsuya Oku, Tomohiro Abe, Satoshi Ikeda, Kiminori Noda, Makoto Egawa
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Patent number: 10603883Abstract: Disclosed is a stretched laminated film 30 having a heat-sealable layer 10 composed of a resin composition which contains 50 to 97 parts by mass of a propylene-based polymer (A) having a melting point (Tm) of not lower than 120° C. but not higher than 170° C. and comprising more than 50% by mol of a structural unit derived from propylene, 3 to 50 parts by mass of a 1-butene-based polymer (B) having a melting point (Tm) of lower than 120° C. and comprising 10 to 90% by mol of a structural unit derived from 1-butene and 10 to 90% by mol of a structural unit derived from an ?-olefin having 3 or 5 to 20 carbon atoms, and optionally 3 to 30 parts by mass of an ethylene ?-olefin copolymer (C) comprising 50 to 99% by mol of a structural unit derived from ethylene and 1 to 50% by mol of a structural unit derived from an ?-olefin having 3 to 20 carbon atoms, wherein the sum of the component (A) and the component (B) is 100 parts by mass; and a base layer 20.Type: GrantFiled: September 25, 2015Date of Patent: March 31, 2020Assignee: MITSUI CHEMICALS, INC.Inventors: Tatsuya Oku, Tomohiro Abe, Satoshi Ikeda, Kiminori Noda, Makoto Egawa
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Publication number: 20190027626Abstract: A laminated sheet of a two-layer sheet in which an L1 layer including 50 to 99 parts by mass of an ethylene-based polymer (E1) having a density of 0.890 to 970 kg/m3 and 1 to 50 parts by mass of a propylene-based polymer (P1) is in contact with an L2 layer including 50 to 100 parts by mass of a propylene-based polymer (P2) and 0 to 50 parts by mass of an ethylene-based elastomer (E2) having a density of equal to or more than 850 kg/m3 and less than 890 kg/m3, in which the propylene-based polymer (P1) includes a propylene-based elastomer (P1a) including a propylene-derived constitutional unit and an ethylene-derived constitutional unit and/or a constitutional unit derived from an ?-olefin having 4 to 20 carbon atoms, and having a melting point (Tm) that is lower than 120° C. or not observable; and a solar cell backsheet formed using the same.Type: ApplicationFiled: January 12, 2017Publication date: January 24, 2019Applicant: MITSUI CHEMICALS, INC.Inventors: Koya YOSHIMOTO, Kiminori NODA, Makoto EGAWA, Tatsuya OKU
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Publication number: 20170266934Abstract: A laminate film (30) of the present invention includes a heat sealing layer (10) composed of a resin composition including, with respect to 20 to 95 parts by weight of a propylene-based polymer (A) having a melting point (Tm) of equal to or higher than 120° C. and equal to or lower than 170° C. as measured by differential scanning calorimetry (DSC), a total of 5 to 80 parts by weight of two or more kinds of copolymers selected from the group consisting of a propylene.Type: ApplicationFiled: August 21, 2015Publication date: September 21, 2017Applicant: MITSUI CHEMICALS, INC.Inventors: Tatsuya OKU, Tomohiro ABE, Satoshi IKEDA, Kiminori NODA, Makoto EGAWA
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Publication number: 20170217144Abstract: Disclosed is a stretched laminated film 30 having a heat-sealable layer 10 composed of a resin composition which contains 50 to 97 parts by mass of a propylene-based polymer (A) having a melting point (Tm) of not lower than 120° C. but not higher than 170° C. and comprising more than 50% by mol of a structural unit derived from propylene, 3 to 50 parts by mass of a 1-butene-based polymer (B) having a melting point (Tm) of lower than 120° C. and comprising 10 to 90% by mol of a structural unit derived from 1-butene and 10 to 90% by mol of a structural unit derived from an ?-olefin having 3 or 5 to 20 carbon atoms, and optionally 3 to 30 parts by mass of an ethylene ?-olefin copolymer (C) comprising 50 to 99% by mol of a structural unit derived from ethylene and 1 to 50% by mol of a structural unit derived from an ?-olefin having 3 to 20 carbon atoms, wherein the sum of the component (A) and the component (B) is 100 parts by mass; and a base layer 20.Type: ApplicationFiled: September 25, 2015Publication date: August 3, 2017Applicant: MITSUI CHEMICALS, INC.Inventors: Tatsuya OKU, Tomohiro ABE, Satoshi IKEDA, Kiminori NODA, Makoto EGAWA
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Patent number: 8321715Abstract: A communication apparatus having a clock interface unit supplying a clock signal for synchronization, includes a clock extracting section for extracting a clock component from a receive signal, a decoding section for generating a decoded signal by decoding in a predetermined encoding form the clock component extracted by the clock extracting section, a frame converting section for creating a receive frame by converting the decoded signal to a frame in a predetermined frame form, a determining section for determining whether the predetermined encoding form and the predetermined frame form are right or not on a basis of the receive frame, a setting section for performing setting regarding the clock signal on a basis of the encoding form and frame form determined to be right by the determining section, and a clock signal output section for outputting the clock signal generated on a basis of the setting by the setting section.Type: GrantFiled: February 10, 2009Date of Patent: November 27, 2012Assignee: Fujitsu LimitedInventors: Tatsuya Oku, Masato Hashizume, Hiroshi Nishida
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Patent number: 8184665Abstract: A disclosed network device includes a plurality of interface cards that receive clock signals and clock signal quality information from other devices via communication lines, respectively being predetermined communication line types corresponding to the plurality of interface cards, a controller that acquires the clock signal quality information and determines one of the clock signals having a highest quality based on this, and a clock processor that generates a synchronization clock signal used for network synchronization the clock processor, based on the determined one of the clock signals, whereby the clock processor includes a frequency measuring instrument that measures a frequency component of the one of the clock signals, and determines the communication line type corresponding to one of the interface cards, and a clock controller that provides a coefficient to a digital filter based on the determined communication line type.Type: GrantFiled: November 30, 2009Date of Patent: May 22, 2012Assignee: Fujitsu LimitedInventors: Tatsuya Oku, Yasuo Takami, Masato Hashizume
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Publication number: 20100172370Abstract: A disclosed network device includes a plurality of interface cards that receive clock signals and clock signal quality information from other devices via communication lines, respectively being predetermined communication line types corresponding to the plurality of interface cards, a controller that acquires the clock signal quality information and determines one of the clock signals having a highest quality based on this, and a clock processor that generates a synchronization clock signal used for network synchronization the clock processor, based on the determined one of the clock signals, whereby the clock processor includes a frequency measuring instrument that measures a frequency component of the one of the clock signals, and determines the communication line type corresponding to one of the interface cards, and a clock controller that provides a coefficient to a digital filter based on the determined communication line type.Type: ApplicationFiled: November 30, 2009Publication date: July 8, 2010Applicant: FUJITSU LIMITEDInventors: Tatsuya OKU, Yasuo TAKAMI, Masato HASHIZUME
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Publication number: 20090249107Abstract: A communication apparatus having a clock interface unit supplying a clock signal for synchronization, includes a clock extracting section for extracting a clock component from a receive signal, a decoding section for generating a decoded signal by decoding in a predetermined encoding form the clock component extracted by the clock extracting section, a frame converting section for creating a receive frame by converting the decoded signal to a frame in a predetermined frame form, a determining section for determining whether the predetermined encoding form and the predetermined frame form are right or not on a basis of the receive frame, a setting section for performing setting regarding the clock signal on a basis of the encoding form and frame form determined to be right by the determining section, and a clock signal output section for outputting the clock signal generated on a basis of the setting by the setting section.Type: ApplicationFiled: February 10, 2009Publication date: October 1, 2009Applicant: Fujitsu LimitedInventors: Tatsuya Oku, Masato Hashizume, Hiroshi Nishida
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Patent number: 7450594Abstract: In multi-connections, a message writing apparatus is provided. This message writing apparatus (21) comprises a path recognizing section (21a), a received message assembling section (21b), a receive control section (21c), an arbitrating section (21d) and an external memory control section (21e). When a received ATM cell is written/readout in/from a receiving buffer, it is written/read out in a memory area corresponding to each path, which enables the processing of AAL5 messages from a plurality of paths and improves the transfer processing capability, thereby leading to realizing a shortening of the data transfer time.Type: GrantFiled: November 9, 2001Date of Patent: November 11, 2008Assignee: Fujitsu LimitedInventors: Akira Yamamori, Takeshi Sasaki, Eiji Maeda, Masao Maeda, Tatsuya Oku, Yoshinori Okuda, Tsuguo Okada, Akihiro Yasuo, Jinichi Yoshizawa
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Patent number: 7027459Abstract: Printed circuit boards 11 to 11n are connected in a star-like configuration with a single packet processing IC 42, connected to a CPU 41, at its center, each printed circuit board being connected to the packet processing IC by a high-speed supervisory control line 21 having a sufficient transmission capacity to transfer therethrough transparent information and alarm transfer information as well as information from the central processing unit in packet form, and the transparent information and the alarm transfer information are communicated between the printed circuit boards via the high-speed supervisory control line and via the packet processing IC, with provisions made for the packet processing IC to detect a destination from the packet information received from the originating printed circuit board and to transmit the packet information to the terminating printed circuit board.Type: GrantFiled: February 25, 2002Date of Patent: April 11, 2006Assignee: Fujitsu LimitedInventors: Satoshi Fukui, Tatsuya Oku, Kenji Fukunaga
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Publication number: 20030072308Abstract: Printed circuit boards 11 to 11n are connected in a star-like configuration with a single packet processing IC 42, connected to a CPU 41, at its center, each printed circuit board being connected to the packet processing IC by a high-speed supervisory control line 21 having a sufficient transmission capacity to transfer therethrough transparent information and alarm transfer information as well as information from the central processing unit in packet form, and the transparent information and the alarm transfer information are communicated between the printed circuit boards via the high-speed supervisory control line and via the packet processing IC, with provisions made for the packet processing IC to detect a destination from the packet information received from the originating printed circuit board and to transmit the packet information to the terminating printed circuit board.Type: ApplicationFiled: February 25, 2002Publication date: April 17, 2003Inventors: Satoshi Fukui, Tatsuya Oku, Kenji Fukunaga
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Publication number: 20020057697Abstract: In multi-connections, a message writing apparatus is provided. This message writing apparatus (21) comprises a path recognizing section (21a), a received message assembling section (21b), a receive control section (21c), arbitrating section (21d) and an external memory control section (21e). When a received ATM cell is written/readout in/from a receiving buffer, it is written/read out in a memory area corresponding to each path, which enables the processing of AAL5 messages from a plurality of paths and improves the transfer processing capability, thereby leading to realizing a shortening of the data transfer time.Type: ApplicationFiled: November 9, 2001Publication date: May 16, 2002Inventors: Akira Yamamori, Takeshi Sasaki, Eiji Maeda, Masao Maeda, Tatsuya Oku, Yoshinori Okuda, Tsuguo Okada, Akihiro Yasuo, Jinichi Yoshizawa
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Patent number: 5857092Abstract: An interface apparatus for SDH/SONET interconnection includes a transmission interface section provided at a position where an apparatus of the SDH system and an apparatus of the SONET system face each other and adapted to transmit a signal toward an apparatus of a different system. The interface apparatus for SDH/SONET interconnection further includes a mode setting unit for setting a mode suitable for an apparatus of a counterpart system, a frame synchronization information inserting unit provided in the transmission interface section and adapted to insert frame synchronization information corresponding to the mode set by the mode setting unit, and an overhead information inserting unit provided in the transmission interface section and adapted to insert overhead information corresponding to the mode set by the mode setting unit. This structure makes is possible to easily interconnect apparatuses of different systems (apparatuses of the SDH system and the SONET system) so as to operate them.Type: GrantFiled: April 18, 1996Date of Patent: January 5, 1999Assignee: Fujitsu LimitedInventors: Yoshinori Nakamura, Tatsuya Oku, Miki Hagino, Nobuo Iguchi, Hiroaki Mori, Yuuki Tsuji