Patents by Inventor Yoshihiro Nakashima
Yoshihiro Nakashima 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: 20220409548Abstract: The present invention aims to provide a preparation containing a compound of the formula [I] or a pharmaceutically acceptable salt thereof or a hydrate thereof having improved pharmacokinetics, and a manufacturing method thereof. The present invention relates to a solid dispersion containing (1) an amorphous compound represented by the following formula [I]: or a pharmaceutically acceptable salt thereof or a hydrate thereof, and (2) one to four kinds of pharmaceutically acceptable polymers selected from the group consisting of hydroxypropylmethylcellulose acetate succinate, methylcellulose, hypromellose and polyvinyl alcohol, and a manufacturing method thereof.Type: ApplicationFiled: March 3, 2020Publication date: December 29, 2022Inventors: Yoshihiro NAKASHIMA, Shun NAKASHIMA, Yoshimasa MORI, Satoshi NOZAWA, Yoshiaki ISHIKAWA
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Publication number: 20090190962Abstract: A developing device includes a housing having inner walls, a toner container disposed in the housing, a supply roller disposed in the toner container so as to oppose one of the inner walls and rotating to move a toner, and a development roller to which the toner is supplied from the supply roller. The inner wall of the housing opposing the supply roller has a recess and a protrusion that allow the toner moved by the rotation of the supply roller to flow in a specific direction so as to agitate the toner.Type: ApplicationFiled: January 27, 2009Publication date: July 30, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Takeshi AOKI, Yoshihiro NAKASHIMA, Hiroshi KATO, Masaru KOBASHI, Takatomo FUKUMOTO
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Patent number: 7441803Abstract: Gas generator for air bag having any of the following members: deflecting member formed as tube portion capable of shielding gas discharge port formed on circumferential wall of housing from inside; coolant/filter means supporting member comprising annular portion arranged to face end surface of housing and wall portion contacting with inner periphery of coolant/filter means; coolant/filter means formed in cylindrical shape obtained by laminating wire mesh; housing securely fixing igniter included in ignition means, having opening portion for inserting and fixing igniter or igniter supporting member, wherein the opening portion is provided with connecting portion for fixing inserted igniter or igniter supporting member, and connecting portion is provided in inner side of housing rather than end surface having the opening portion.Type: GrantFiled: January 31, 2006Date of Patent: October 28, 2008Assignee: Daicel Chemical Industries, Ltd.Inventors: Katsuhito Miyaji, Yasunori Iwai, Masayuki Yamazaki, Yoshihiro Nakashima, Atsushi Hatomoto
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Patent number: 7260336Abstract: In a density control technique wherein a density of a toner image formed as a patch image is detected for performing density control based on the detected result, detection errors are decreased so as to properly set a density control factor. The density control factor is optimized based on a variation rate of the patch image densities against a varied density control factor. The detected results of the patch image densities are corrected based on information on an image carrier acquired before the formation of the patch images.Type: GrantFiled: May 12, 2006Date of Patent: August 21, 2007Assignee: Seiko Epson CorporationInventors: Hidetsugu Shimura, Takashi Hama, Yoshihiro Nakashima
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Publication number: 20070170708Abstract: When a gas generating agent 9a inside a first combustion chamber 5a is burnt, a gas generating agent 9b is prevented from being burnt by function of a metal thin plate 11 closing a communication hole 10 with a second combustion chamber 5b. A cup 1190 having a hole 1191 is covered on an igniter 1112, and the flame thereof advances into a transfer charge 1116 straightly in a narrow width. Accordingly, since the transfer charge 1116 is burnt completely, sufficient flame for burning a gas generating agent 1109 can be generated securely. A communication hole 3010 between a first combustion chamber 3005a and a second combustion chamber 3005b is closed by double-layered seal tape 3011 laminated through an adhesive layer. After activation, the seal tapes 3011 are not ruptured due to increase in the internal pressure of the first combustion chamber 3005a, but they are peeled off easily due to increase in the internal pressure of the second combustion chamber 3005b.Type: ApplicationFiled: March 14, 2007Publication date: July 26, 2007Inventors: Yasunori Iwai, Nobuyuki Katsuda, Yoshihiro Nakashima, Nobuyuki Ohji
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Patent number: 7175197Abstract: A gas generator has an inner cylindrical member disposed in a cylindrical housing, an annular first combustion chamber provided radially in the outside of the inner cylindrical member, and, in the combustion chamber, a ratio of its radial average distance to its axial average length is adjusted to be in the range of 0.2 to 2.0. The gas generator has a retainer which changes a flow of a gas ejected from a through-hole in the inner cylindrical member and has a cylindrical portion for collecting fluid and semifluid combustion products included in the gas.Type: GrantFiled: October 31, 2001Date of Patent: February 13, 2007Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasunori Iwai, Katsuhito Miyaji, Nobuyuki Ohji, Mikio Yabuta, Atsushi Hatomoto, Toshiro Iwakiri, Nobuyuki Katsuda, Yoshihiro Nakashima, Takashi Okuyama
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Patent number: 7152874Abstract: A gas generator for an air bag is provided with a porous tube member, in which a portion opposing the ejecting direction of a flame and the like generated due to an activation of an ignition unit stored in an inner cylindrical member is formed as a flame-preventing annular portion having no opening, disposed in a gas generator housing. Further, a multistage gas generating apparatus prevents an erroneous connection between a plurality of igniters stored in a gas generator and outputting portions of an ignition signal outputting device. In the multistage air bag apparatus, the gas generator includes a plurality of igniters, and a defining unit for specifying the unique connection between the respective ignition signal outputting unit and the respective igniters is provided in a connector provided in a lead wire for sending an ignition signal to each of the igniters.Type: GrantFiled: July 18, 2005Date of Patent: December 26, 2006Assignee: Daicel Chemical Industries, Ltd.Inventors: Yoshihiro Nakashima, Nobuyuki Katsuda, Nobuyuki Ohji
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Publication number: 20060204261Abstract: In a density control technique wherein a density of a toner image formed as a patch image is detected for performing density control based on the detected result, detection errors are decreased so as to properly set a density control factor. The density control factor is optimized based on a variation rate of the patch image densities against a varied density control factor. The detected results of the patch image densities are corrected based on information on an image carrier acquired before the formation of the patch images.Type: ApplicationFiled: May 12, 2006Publication date: September 14, 2006Inventors: Hidetsugu Shimura, Takashi Hama, Yoshihiro Nakashima
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Publication number: 20060151978Abstract: Gas generator for air bag having any of the following members: deflecting member formed as tube portion capable of shielding gas discharge port formed on circumferential wall of housing from inside; coolant/filter means supporting member comprising annular portion arranged to face end surface of housing and wall portion contacting with inner periphery of coolant/filter means; coolant/filter means formed in cylindrical shape obtained by laminating wire mesh; housing securely fixing igniter included in ignition means, having opening portion for inserting and fixing igniter or igniter supporting member, wherein the opening portion is provided with connecting portion for fixing inserted igniter or igniter supporting member, and connecting portion is provided in inner side of housing rather than end surface having the opening portion.Type: ApplicationFiled: January 31, 2006Publication date: July 13, 2006Inventors: Katsuhito Miyaji, Yasunori Wai, Masayuki Yamazaki, Yoshihiro Nakashima, Atsushi Hatomoto
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Image forming apparatus and image method for forming toner images with optimized patch image density
Patent number: 7072597Abstract: In a density control technique wherein a density of a toner image formed as a patch image is detected for performing density control based on the detected result, detection errors are decreased so as to properly set a density control factor. The density control factor is optimized based on a variation rate of the patch image densities against a varied density control factor. The detected results of the patch image densities are corrected based on information on an image carrier acquired before the formation of the patch images.Type: GrantFiled: February 18, 2003Date of Patent: July 4, 2006Assignee: Seiko Epson CorporationInventors: Hidetsugu Shimura, Takashi Hama, Yoshihiro Nakashima -
Publication number: 20060131853Abstract: A gas generator for an air bag in which safety and reliability are improved. Even when a gas generating agent 9a inside a first combustion chamber 5a is burnt, a gas generating agent 9b is prevented from being burnt by function of a metal thin plate 11 closing a communication hole 10 with a second combustion chamber 5b. A cup 1190 having a hole 1191 is covered on an igniter 1112, and the flame thereof advances into a transfer charge 1116 straightly in a narrow width. Accordingly, since the transfer charge 1116 is burnt completely, sufficient flame for burning a gas generating agent 1109 can be generated securely. An igniter and a transfer charge are stored in an ignition means accommodating chamber 2008, and the charge density of a transfer charge 2016a inside a transfer charge accommodating chamber 2015a is in the range of 0.1 to 5 g/cm3.Type: ApplicationFiled: December 22, 2005Publication date: June 22, 2006Inventors: Yasunori Iwai, Nobuyuki Katsuda, Yoshihiro Nakashima, Nobuyuki Ohji
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Patent number: 7055855Abstract: A multistage type gas generator for an air bag, which has a simple structure and can be easily manufactured and in which combustions of gas generating agents provided in a plurality of combustion chambers do not influence each other, is provided. In the multistage type gas generator, a plurality of the combustion chambers are provided in an axial direction of a cylindrical housing.Type: GrantFiled: June 8, 2001Date of Patent: June 6, 2006Assignee: Diacel Chemical Industries, Ltd.Inventors: Yoshihiro Nakashima, Nobuyuki Katsuda
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Publication number: 20050250350Abstract: A gas generator for an air bag is provided with a porous tube member, in which a portion opposing the ejecting direction of a flame and the like generated due to an activation of an ignition unit stored in an inner cylindrical member is formed as a flame-preventing annular portion having no opening, disposed in a gas generator housing. Further, a multistage type gas generating apparatus prevents an erroneous connection between a plurality of igniter stored in a gas generator 1 and outputting portions of an ignition signal outputting device. In the multistage type air bag apparatus, the gas generator includes a plurality of igniters, and a defining unit for specifying the unique connection between the respective ignition signal outputting unit and the respective igniters is provided in a connector provided in a lead wire for sending an ignition signal to each of the igniters.Type: ApplicationFiled: July 18, 2005Publication date: November 10, 2005Inventors: Yoshihiro Nakashima, Nobuyuki Katsuda, Nobuyuki Ohji
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Patent number: 6948737Abstract: A gas generator for an air bag has gas discharge ports closed by a seal tape and has two different opening areas. When a pressure inside the gas generator increases due to combustion of a gas generating agent, a gas discharge port having a larger area is first opened to decrease the internal pressure. Subsequently, as the pressure further increases a gas discharging port having a smaller area is opened to decrease the internal pressure.Type: GrantFiled: December 23, 2002Date of Patent: September 27, 2005Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Ohji, Yoshihiro Nakashima
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Patent number: 6945561Abstract: A gas generator for an air bag is provided with a porous tube member, in which a portion opposing the ejecting direction of a flame and the like generated due to an activation of an ignition unit stored in an inner cylindrical member is formed as a flame-preventing annular portion having no opening, disposed in a gas generator housing. Further, a multistage type gas generating apparatus prevents an erroneous connection between a plurality of igniter stored in a gas generator 1 and outputting portions of an ignition signal outputting device. In the multistage type air bag apparatus, the gas generator includes a plurality of igniters, and a defining unit for specifying the unique connection between the respective ignition signal outputting unit and the respective igniters is provided in a connector provided in a lead wire for sending an ignition signal to each of the igniters.Type: GrantFiled: June 8, 2001Date of Patent: September 20, 2005Assignee: Diacel Chemical Industries, Ltd.Inventors: Yoshihiro Nakashima, Nobuyuki Katsuda, Nobuyuki Ohji
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Patent number: 6942249Abstract: An airbag gas generator has a housing having gas discharge ports, an ignition unit provided within the housing for generating a combustion product upon activation thereof, the ignition unit including an igniter having an output pressure of 700 psi or higher at 20° C. atmosphere when said igniter is burned within a hermetically closed cylinder having a volume of 10 cc, and a seal device for closing the gas discharge ports to prevent fluid communication between an inside and outside of the housing before activation of the gas generator, the seal means being ruptured by an inner pressure increased as a result of the generation of the combustion product.Type: GrantFiled: March 4, 2003Date of Patent: September 13, 2005Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasunori Iwai, Yoshihiro Nakashima, Nobuyuki Katsuda, Masayuki Yamazaki, Shingo Oda
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Publication number: 20050184497Abstract: Gas generator for air bag having any of the following members: deflecting member formed as tube portion capable of shielding gas discharge port formed on circumferential wall of housing from inside; coolant/filter means supporting member comprising annular portion arranged to face end surface of housing and wall portion contacting with inner periphery of coolant/filter means; coolant/filter means formed in cylindrical shape obtained by laminating wire mesh; housing securely fixing igniter included in ignition means, having opening portion for inserting and fixing igniter or igniter supporting member, wherein the opening portion is provided with connecting portion for fixing inserted igniter or igniter supporting member, and connecting portion is provided in inner side of housing rather than end surface having the opening portion.Type: ApplicationFiled: March 22, 2005Publication date: August 25, 2005Inventors: Katsuhito Miyaji, Yasunori Iwai, Masayuki Yamazaki, Yoshihiro Nakashima, Atsushi Hatomoto
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Patent number: 6926304Abstract: The invention provided a gas generator for an air bag having any of the following members. A deflecting member is provided to suppress discharge of a combustion product generated by a combustion of gas generating means, and is formed as a tube portion to be capable of shielding a gas discharge port formed at least on a circumferential wall of a housing from the inside of the housing. A coolant/filter means supporting member can position a coolant/filter means, prevent a short pass of an operating gas, and functions as a buffer member between the coolant/filter and the housing, and/or prevent a heat from being transferred to a diffuser shell, and comprises an annular portion arranged to face an end surface of the housing and a wall portion contacting with an inner periphery of the coolant/filter means.Type: GrantFiled: February 21, 2001Date of Patent: August 9, 2005Assignee: Daicel Chemical Industries, Ltd.Inventors: Katsuhito Miyaji, Yasunori Iwai, Masayuki Yamazaki, Yoshihiro Nakashima, Atsushi Hatomoto
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Publication number: 20050151356Abstract: A gas generator for an air bag has gas discharge ports closed by a seal tape and having two different opening areas. When a pressure inside the gas generator increases due to combustion of a gas generating agent, a gas discharge port having a larger area is first opened to decrease the internal pressure. Subsequently, as the pressure further increases a gas discharging port having a smaller area is opened to decrease the internal pressure.Type: ApplicationFiled: December 23, 2002Publication date: July 14, 2005Inventors: Nobuyuki Ohji, Yoshihiro Nakashima
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Patent number: 6848713Abstract: A gas generator for an air bag comprises: a housing having a gas discharging port; an initiator assembly provided with a first igniter and a second igniter mounted to the housing via a holder, each of the first igniter and the second igniter including a priming activated upon an impact, the second igniter having, a center pin connected to an external power supply to constitute a positive electrode, a grounding pin connected to a metal portion of a motor vehicle to constitute a negative electrode, and an opening-shutting device of current provided between the center pin and the external power supply; and gas generating material ignited and burnt by the initiator assembly.Type: GrantFiled: June 21, 2001Date of Patent: February 1, 2005Assignee: Daicel Chemical Industries, Ltd.Inventors: Yoshihiro Nakashima, Nobuyuki Katsuda