Patents by Inventor Keiji Akiyama
Keiji Akiyama 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).
-
Patent number: 11177891Abstract: A communication device that includes an antenna including a first electrode and a second electrode, at least one of the first electrode or the second electrode including a plurality of segmented electrodes. The communication device further includes a communication circuit, coupled to the antenna, that performs a transmission operation and a reception operation of transmission data between a device and the communication circuit based on a communication protocol that includes a plurality of communication stages. The communication device further includes a switch that switches whether or not each of the plurality of segmented electrodes is to be coupled to the communication circuit and a controller that changes an effective electrode area of at least one of the first electrode or the second electrode by the switch, based on at least one of the operations of the communication circuit, a type of the transmission data, or the communication stages.Type: GrantFiled: July 5, 2018Date of Patent: November 16, 2021Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Keiji Akiyama, Fumihiro Nishiyama
-
Publication number: 20200169328Abstract: A communication device of the present disclosure includes: an antenna including a first electrode and a second electrode, in which at least one of the first electrode or the second electrode includes a plurality of segmented electrodes; a communication circuit that is coupled to the antenna, and performs, through the antenna, a transmission operation and a reception operation of transmission data between a device to be communicated and the communication circuit, in accordance with a communication protocol that includes a plurality of communication stages; a switch that switches whether or not each of the plurality of segmented electrodes is to be coupled to the communication circuit, to change effective electrode area of at least one of the first electrode or the second electrode; and a controller that changes the effective electrode area of at least one of the first electrode or the second electrode by the switch, on the basis of at least one of the operations of the communication circuit, a type of the tranType: ApplicationFiled: July 5, 2018Publication date: May 28, 2020Inventors: KEIJI AKIYAMA, FUMIHIRO NISHIYAMA
-
Patent number: 10215486Abstract: A liquefied gas production facility includes a plurality of liquefied gas producers which produce liquefied gas by removing an unnecessary substance and liquefying feed gas containing methane as a main component.Type: GrantFiled: December 27, 2013Date of Patent: February 26, 2019Assignee: JGC CORPORATIONInventors: Keiji Akiyama, Yoshihisa Wakamatsu, Naoyuki Takezawa, Takahiro Kitabayashi, Masahito Seiwa, Yuzuru Kakutani, Takashi Hirata, Kei Kubota
-
Publication number: 20150354887Abstract: A liquefied gas production facility includes a plurality of liquefied gas producers which produce liquefied gas by removing an unnecessary substance and liquefying feed gas containing methane as a main component.Type: ApplicationFiled: December 27, 2013Publication date: December 10, 2015Applicant: JGC CORPORATIONInventors: Keiji Akiyama, Yoshihisa Wakamatsu, Naoyuki Takezawa, Takahiro Kitabayashi, Masahito Seiwa, Yuzuru Kakutani, Takashi Hirata, Kei Kubota
-
Patent number: 8137433Abstract: A metal regeneration method including: a melting furnace cleaning step of melting pure aluminum with an aluminum content of 99.5% by weight or higher in a melting furnace to clean the inside of the melting furnace; and a metal regeneration step of melting waste lithographic printing plates selected from unused lithographic printing plates and used lithographic printing plates, in the melting furnace whose inside has been cleaned by the melting furnace cleaning step, to obtain regenerated metal.Type: GrantFiled: December 25, 2008Date of Patent: March 20, 2012Assignee: Fujifilm CorporationInventors: Masakazu Osada, Toru Yamazaki, Keiji Akiyama, Yoshio Okishi
-
Publication number: 20100275733Abstract: A metal regeneration method including: a melting furnace cleaning step of melting pure aluminum with an aluminum content of 99.5% by weight or higher in a melting furnace to clean the inside of the melting furnace; and a metal regeneration step of melting waste lithographic printing plates selected from unused lithographic printing plates and used lithographic printing plates, in the melting furnace whose inside has been cleaned by the melting furnace cleaning step, to obtain regenerated metal.Type: ApplicationFiled: December 25, 2008Publication date: November 4, 2010Inventors: Masakazu Osada, Toru Yamazaki, Keiji Akiyama, Yoshio Okishi
-
Patent number: 7532665Abstract: A wireless communication apparatus for transmission/reception of a wireless communication signal, including first and second circuits that process a transmission/reception signal, an oscillator that generates a reception clock on a first circuit side, the reception clock being used for an operation reference, a first interface that supplies the reception clock from the first circuit to the second circuit, a second interface that supplies, to the first circuit, transmission data output from the second circuit synchronously with the reception clock supplied from the first circuit, and delay compensation that compensates for a delay between the reception clock and transmission data at the first circuit, the reception clock and transmission data being input via the second interface.Type: GrantFiled: May 31, 2005Date of Patent: May 12, 2009Assignee: Sony CorporationInventors: Keiji Akiyama, Katsuyuki Tanaka, Masayuki Takada
-
Patent number: 6985714Abstract: From an electric pole outside to a cordless handset inside a building/facility, a communication line is established via an electric power line. At this point, it is judged whether or not electric power line communication is possible, and if electric power line communication is possible, the communication line between the cordless handset and a base unit is switched to an electric power line communication system, and a communication line is formed via an optical fiber cable from the electric power line. By measuring the communication quality levels of all lines of the wireless and electric power lines, the communication line having the highest communication quality level may be selected.Type: GrantFiled: November 19, 2002Date of Patent: January 10, 2006Assignee: Sony CorporationInventors: Keiji Akiyama, Satoshi Konya
-
Publication number: 20050276319Abstract: The present invention provides a wireless communication apparatus for transmission/reception of a wireless communication signal, which includes: first and second circuits for processing a transmission/reception signal; an oscillator for generating a reception clock on a first circuit side, the reception clock being used for an operation reference; a first interface for supplying the reception clock from the first circuit to the second circuit; a second interface for inputting, to the first circuit, transmission data output from the second circuit synchronously with the reception clock supplied from the first circuit; and delay compensating means for compensating for a delay between the reception clock and transmission data at the first circuit, the reception clock and transmission data being input via the second interface.Type: ApplicationFiled: May 31, 2005Publication date: December 15, 2005Applicant: Sony CorporationInventors: Keiji Akiyama, Katsuyuki Tanaka, Masayuki Takada
-
Patent number: 6884560Abstract: A lithographic printing plate precursor comprising a hydrophilic support and an image-forming layer containing a heat radical-generating agent, a polymethine dye, and at least one component selected from fine particles containing a compound having a radical polymerizable group and microcapsules encapsulating a compound having a radical polymerizable group.Type: GrantFiled: October 31, 2001Date of Patent: April 26, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiromitsu Yanaka, Kazuo Maemoto, Keiji Akiyama
-
Patent number: 6852470Abstract: A heat-sensitive lithographic printing plate precursor comprising a substrate having ink-receptive surface or coated with an ink-receptive layer having provided thereon a hydrophilic layer which comprises: (1) a colloid of an oxide or a hydroxide of at least one element selected from the group consisting of beryllium, magnesium, aluminum, silicon, titanium, boron, germanium, tin, zirconium, iron, vanadium, antimony, and transition metals, (2) a hydrophilic resin, and (3) a light-to-heat conversion material.Type: GrantFiled: September 15, 2000Date of Patent: February 8, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuyuki Kita, Keiji Akiyama, Hidekazu Oohashi
-
Publication number: 20040023146Abstract: A lithographic printing plate precursor is disclosed, which comprises an image-forming layer which contains a hydrophilic resin, an acid precursor and at least one component selected from fine particles containing a compound having a vinyloxy group and microcapsules containing a compound having a vinyloxy group, on a hydrophilic support, which can be development processed on a printing machine.Type: ApplicationFiled: July 14, 2003Publication date: February 5, 2004Applicant: Fuji Photo Film Co., Ltd.Inventors: Kazuo Maemoto, Keiji Akiyama, Hiromitsu Yanaka
-
Patent number: 6653042Abstract: A lithographic printing plate precursor which comprises a support having provided thereon a layer comprising a hydrophilic medium, wherein the layer comprising a hydrophilic medium contains a hydrophobitization precursor having a hydrophilic surface and a light/heat converting agent which is hydrophilic in itself, or at least on the surface.Type: GrantFiled: June 2, 2000Date of Patent: November 25, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyotaka Fukino, Keiji Akiyama, Shunsaku Higashi, Satoshi Hoshi
-
Patent number: 6637334Abstract: A heat-sensitive lithographic printing plate precursor which comprises a substrate having thereon an anodic oxidation layer, with the printing plate precursor comprising a hydrophilic layer containing at least one kind of fine particles selected from the group consisting of heat-fusible hydrophobic thermoplastic fine particles, finely divided polymers having thermally reactive functional groups and microcapsules in which compounds having heat-reactive functional groups are encapsulated, and with the anodic oxidation layer having a surface over which micropores having an average pore size of 6 to 40 nm are uniformly distributed.Type: GrantFiled: April 9, 2001Date of Patent: October 28, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Akiyama, Hisashi Hotta, Kazuo Maemoto
-
Patent number: 6632589Abstract: A hydrophilic layer and an overcoat layer are provided in this order on a heat-sensitive layer having an ink receiving surface, so as to form an original (plate) for a lithographic printing plate. The overcoat layer can be removed during printing. A system capable of forming an inorganic hydrophilic matrix by sol-gel conversion is provided in the hydrophilic layer. Adhesion between the heat-sensitive layer and the hydrophilic layer decreases in a heated region through image processing. Emulsion ink is supplied to the plate surface during printing, whereby the overcoat layer and the hydrophilic layer at an image portion are removed with a hydrophilic component of the emulsion ink. Thus, with a heat-sensitive original that can be subjected to heat-mode prepress using laser exposure, good printed matter can be stably obtained, irrespective of balance between image and non-image portions, without using wetting water.Type: GrantFiled: April 17, 2001Date of Patent: October 14, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshifumi Inno, Hiromichi Tachikawa, Keiji Akiyama
-
Publication number: 20030129978Abstract: From an electric pole outside to a cordless handset inside a building/facility, a communication line is established via an electric power line. At this point, it is judged whether or not electric power line communication is possible, and if electric power line communication is possible, the communication line between the cordless handset and a base unit is switched to an electric power line communication system, and a communication line is formed via an optical fiver cable from the electric power line. By measuring the communication quality levels of all lines of the wireless and electric power lines, the communication line having the highest communication quality level may be selected.Type: ApplicationFiled: November 19, 2002Publication date: July 10, 2003Applicant: Sony CorporationInventors: Keiji Akiyama, Satoshi Konya
-
Patent number: 6455222Abstract: A heat mode type lithographic printing plate precursor which can be directly mounted on a printing press without development processing after scanning exposure for a short time to conduct plate-making, has excellent press life and also gives few print stains onto a printed face, which comprises a substrate having provided thereon an image recording layer containing fine light-heat convertible particles which are coated with a hydrophilic material, the layer being made hydrophobic by the action of heat.Type: GrantFiled: March 20, 2000Date of Patent: September 24, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyotaka Fukino, Keiji Akiyama
-
Publication number: 20020102488Abstract: A lithographic printing plate precursor comprising a hydrophilic support and an image-forming layer containing a heat radical-generating agent, a polymethine dye, and at least one component selected from fine particles containing a compound having a radical polymerizable group and microcapsules encapsulating a compound having a radical polymerizable group.Type: ApplicationFiled: October 31, 2001Publication date: August 1, 2002Inventors: Hiromitsu Yanaka, Kazuo Maemoto, Keiji Akiyama
-
Patent number: 6423467Abstract: A photosensitive resin composition containing a high molecular compound having at least a) a fluoro aliphatic group, and b) a group represented by formula —L—P (wherein L represents a divalent organic group connected to the skeleton of the high molecular compound, and P represents an aromatic group having a carboxyl group at the ortho-position).Type: GrantFiled: April 6, 1999Date of Patent: July 23, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Ikuo Kawauchi, Keiji Akiyama, Noriaki Watanabe, Koichi Kawamura
-
Publication number: 20020086233Abstract: A photosensitive resin composition containing a high molecular compound having at least a) a fluoro aliphatic group, and b) a group represented by formula —L—P (wherein L represents a divalent organic group connected to the skeleton of the high molecular compound, and P represents an aromatic group having a carboxyl group at the ortho-position).Type: ApplicationFiled: April 6, 1999Publication date: July 4, 2002Inventors: IKUO KAWAUCHI, KEIJI AKIYAMA, NORIAKI WATANABE, KOICHI KAWAMURA, KAZUO FUJITA, TAKESHI SERIKAWA, AKIRA NAGASHIMA