Patents by Inventor Tetsuya Ida
Tetsuya Ida 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: 20230188017Abstract: A radial flux synchronous machine includes a stator in a cylindrical shape provided with a plurality of magnetic poles, an inner rotor disposed radially inward of the stator and having an inner armature opposing the magnetic pole from radially inward, and an outer rotor disposed radially outward of the stator and having an outer armature opposing the magnetic pole (from radially outward.Type: ApplicationFiled: January 4, 2021Publication date: June 15, 2023Inventors: Mitsuru IZUMI, Kota YAMAGUCHI, Shinji TAKEI, Tetsuya IDA
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Patent number: 9995991Abstract: An image pickup apparatus includes a circuit board, a solid-state image sensing device disposed on an upper surface of the circuit board, a cylindrical lens barrel disposed above the circuit board, a lens housed in the lens barrel, and a holding member that holds the lens barrel and the circuit board therein. The solid-state image sensing device is positioned in an enclosed space formed by the lens barrel and the circuit board. The lens barrel has a first flange portion protruding in a direction perpendicular to a central axis of the lens barrel. The holding member has a first fitting groove portion in which the first flange portion of the lens barrel is fit. A thermal expansion coefficient of the holding member is smaller than a thermal expansion coefficient of the lens barrel.Type: GrantFiled: November 26, 2015Date of Patent: June 12, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tetsuya Ida, Tatsuhiko Inagaki
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Publication number: 20170331994Abstract: An imaging apparatus includes a circuit board, a solid-state image sensing device disposed on an upper surface of the circuit board, a lens disposed above and spaced from the solid-state image sensing device, and a lens barrel disposed on the upper surface of the circuit board and that houses the tens. The lens barrel has a leg section which is at least a part of the lens barrel other than a part of the lens barrel housing the lens, and the leg section is connected to the circuit board with an adhesive applied in a large application amount to have a thickness.Type: ApplicationFiled: November 27, 2015Publication date: November 16, 2017Inventors: Tetsuya IDA, Tatsuhiko INAGAKI
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Publication number: 20170315426Abstract: An image pickup apparatus includes a circuit board, a solid-state image sensing device disposed on an upper surface of the circuit board, a cylindrical lens barrel disposed above the circuit board, a lens housed in the lens barrel, and a holding member that holds the lens barrel and the circuit board therein. The solid-state image sensing device is positioned in an enclosed space formed by the lens barrel and the circuit board. The lens barrel has a first flange portion protruding in a direction perpendicular to a central axis of the lens barrel. The holding member has a first fitting groove portion in which the first flange portion of the lens barrel is fit. A thermal expansion coefficient of the holding member is smaller than a thermal expansion coefficient of the lens barrel.Type: ApplicationFiled: November 26, 2015Publication date: November 2, 2017Inventors: Tetsuya IDA, Tatsuhiko INAGAKI
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Publication number: 20170307848Abstract: A photographing device includes a circuit board, a connector, a solid-state image sensing device disposed on an upper surface of the circuit board, a lens disposed above and spaced from the solid-state image sensing device, a lens barrel disposed on the upper surface of the circuit board and that holds the lens therein, an electric wire for transmitting, from the circuit board to the connector, an electric signal output from the solid-state image sensing device, and a holding member injection molded to enclose a region including and surrounding the lens barrel, a region including and surrounding the circuit board, and a region including and surrounding the electric wire and the connector. The electric wire is an elastic conductor.Type: ApplicationFiled: November 27, 2015Publication date: October 26, 2017Inventor: Tetsuya IDA
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Patent number: 9541852Abstract: A toner contains toner particles. The toner particles are made of a resin containing an amorphous polyester resin, a releasing agent, an additive and a coloring agent. The additive has a polyester portion and a crystalline acrylic portion that are chemically bound to each other.Type: GrantFiled: December 18, 2014Date of Patent: January 10, 2017Assignee: Canon Kabushiki KaishaInventors: Kosuke Fukudome, Shuhei Moribe, Satoshi Mita, Kunihiko Nakamura, Noriyoshi Umeda, Yoshiaki Shiotari, Naoki Okamoto, Tetsuya Ida
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Patent number: 9285697Abstract: Provided is a toner has toner particle containing a crystalline polyester resin A, an amorphous resin B and a colorant, wherein (1) the crystalline polyester resin A is a resin that has a crystal nucleating agent segment (D) on the end of a polyester molecular chain (C), (2) the amorphous resin (B) is a hybrid resin in which a polyester unit (E) and a vinyl polymer unit (F) are chemically bonded, and (3) the SP value of the polyester molecular chain (C) (Sc), the SP value of the crystal nucleating agent segment (D) (Sd), the SP value of the polyester unit (E) (Se) and the SP value of the vinyl polymer unit (F) (Sf) satisfy specific relationships.Type: GrantFiled: July 30, 2014Date of Patent: March 15, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Kosuke Fukudome, Shuhei Moribe, Naoki Okamoto, Kunihiko Nakamura, Noriyoshi Umeda, Yoshiaki Shiotari, Satoshi Mita, Tetsuya Ida
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Patent number: 9261806Abstract: Provided is a toner having excellent long-term storage stability and exhibiting both low-temperature fixability and uniform gloss in high-speed printing. A toner has a toner particle that contains a crystalline polyester resin A, an amorphous polyester resin B and a colorant, wherein the crystalline polyester resin A has a polyester molecular chain having a nucleating agent segment at the terminal end thereof, and an SP value Sa ((cal/cm3)1/2) of the crystalline polyester resin A ranges from 9.00 to 11.50, and the amorphous polyester resin B has a specific functional group.Type: GrantFiled: July 28, 2014Date of Patent: February 16, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Shuhei Moribe, Naoki Okamoto, Kosuke Fukudome, Satoshi Mita, Kunihiko Nakamura, Noriyoshi Umeda, Yoshiaki Shiotari, Tetsuya Ida
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Patent number: 9141012Abstract: The toner includes toner particles containing a polyester resin A, a polyester resin B and a colorant, the polyester resin A has a polyester portion including a segment capable of forming a crystal structure and a crystal nucleating agent segment, which is bonded to an end of the polyester portion, and the polyester resin B is a resin which is free of any segments capable of forming a crystal structure, the polyester resin B has a weight average molecular weight Mwb by GPC of a THF soluble matter of 3000 or more and 100000 or less, and an SP value Sa ((cal/cm3)1/2) of the polyester portion of the polyester resin A and an SP value Sb ((cal/cm3)1/2) of the polyester resin B satisfy the following relationships: 9.00?Sa?10.50 ?0.40?Sb?Sa?0.80.Type: GrantFiled: December 12, 2013Date of Patent: September 22, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Shuhei Moribe, Kosuke Fukudome, Satoshi Mita, Kazuo Terauchi, Yojiro Hotta, Tetsuya Ida
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Patent number: 9134637Abstract: The toner of the present invention includes toner particles containing polyester resins A and B and a colorant, the A has a polyester portion including a portion capable of forming a crystal structure and a crystal nucleating agent portion, which is bonded to an end of the polyester portion, the B is free from any portions capable of forming a crystal structure, in a chart obtained as a result of GPC of a THF-soluble matter of the B, a ratio of a component having a molecular weight of 1500 or less in the B is 5.0 to 15.0% by area, and when an SP value of the polyester portion of the A is represented by Sa ((cal/cm3)1/2) and an SP value of the B is represented by Sb ((cal/cm3)1/2), the SP values Sa and Sb satisfy the following relationships: 9.50?Sa?11.00 ?0.65?Sb?Sa?0.70.Type: GrantFiled: December 11, 2013Date of Patent: September 15, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Yojiro Hotta, Shuhei Moribe, Kosuke Fukudome, Satoshi Mita, Kazuo Terauchi, Tetsuya Ida
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Patent number: 9116448Abstract: Provided is a toner exhibiting satisfactory fixability even in high-speed fixing process involving a double-sided printing mechanism, keeping stable toner image even after a conveyance step, and doesn't cause curling to a fixing roller even in thin paper. In a toner including toner particles, each of which contains polyester resins A and B, a coloring agent, and a resin composition C, the resin A includes a crystal nucleating agent bonded to a polyester molecular chain including a moiety capable of forming a crystalline structure. The resin B doesn't include a moiety capable of forming a crystalline structure. The composition C is obtained by copolymerizing a vinyl-based resin component with a polyolefin resin component. SP values the resin A, the resin B, the agent, the polyolefin component, and the vinyl-based component satisfy the particular relationships.Type: GrantFiled: June 19, 2013Date of Patent: August 25, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Kazuo Terauchi, Shuhei Moribe, Kosuke Fukudome, Satoshi Mita, Yojiro Hotta, Tetsuya Ida
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Publication number: 20150177635Abstract: A toner contains toner particles. The toner particles are made of a resin containing an amorphous polyester resin, a releasing agent, an additive and a coloring agent. The additive has a polyester portion and a crystalline acrylic portion that are chemically bound to each other.Type: ApplicationFiled: December 18, 2014Publication date: June 25, 2015Inventors: Kosuke Fukudome, Shuhei Moribe, Satoshi Mita, Kunihiko Nakamura, Noriyoshi Umeda, Yoshiaki Shiotari, Naoki Okamoto, Tetsuya Ida
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Publication number: 20150177630Abstract: A toner manufacturing method includes a first mixing process of mixing toner base particles, each of which contains a colorant, a crystalline resin, an amorphous resin, and wax with inorganic fine particles to obtain a mixture and a second mixing process of further mixing the mixture, in which, in both the mixing processes, a stirring unit for imparting mechanical impact force is used and the processing is performed at a specific processing temperature (° C.) with a specific stirring power (W/kg).Type: ApplicationFiled: December 16, 2014Publication date: June 25, 2015Inventors: Noriyoshi Umeda, Kunihiko Nakamura, Yoshiaki Shiotari, Shuhei Moribe, Kosuke Fukudome, Satoshi Mita, Naoki Okamoto, Tetsuya Ida
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Patent number: 9046800Abstract: Provided is the following magnetic carrier. The magnetic carrier maintains high developing performance even when the number of sheets to be output is large. Its charge-providing performance hardly reduces even when toner or an external additive is spent on the magnetic carrier. In addition, the magnetic carrier is strong in resistance against standing. The magnetic carrier includes a magnetic carrier core and a resinous coating layer formed on a surface of the magnetic carrier core, in which the resinous coating layer contains a resin composition and silica-alumina composite particles.Type: GrantFiled: April 25, 2012Date of Patent: June 2, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Yojiro Hotta, Naoki Okamoto, Kazuo Terauchi, Ryuichiro Matsuo, Tetsuya Ida
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Patent number: 9040216Abstract: Provided is a toner satisfying low-temperature fixing performance and long-term storage stability of fixed images. Further, provided is a toner capable of obtaining toner images excellent in long-term storage stability irrespective of use environments even in the case where images are formed by a high-speed fixing system having low internal pressure of a fixing nip of a fixing device and a high printing speed. The toner includes toner particles containing a binder resin having a resin A and B, and a coloring agent, in which the resin A includes a resin including a moiety capable of forming a crystalline structure; the resin B includes a resin free of a moiety capable of forming a crystalline structure; and ?Hhigh and ?Hlow satisfy the expressions: 2??Hhigh?45 3[%]?{(?Hlow??Hhigh)/?Hlow}×100?70[%] where ?Hhigh and ?Hlow represent a heat of melting derived from the binder resin measured at a temperature increase speed of 100° C./min and 10° C./min, respectively.Type: GrantFiled: December 3, 2013Date of Patent: May 26, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Kosuke Fukudome, Shuhei Moribe, Satoshi Mita, Kazuo Terauchi, Yojiro Hotta, Tetsuya Ida
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Publication number: 20150037728Abstract: Provided is a toner having excellent long-term storage stability and exhibiting both low-temperature fixability and uniform gloss in high-speed printing. A toner has a toner particle that contains a crystalline polyester resin A, an amorphous polyester resin B and a colorant, wherein the crystalline polyester resin A has a polyester molecular chain having a nucleating agent segment at the terminal end thereof, and an SP value Sa ((cal/cm3)1/2) of the crystalline polyester resin A ranges from 9.00 to 11.50, and the amorphous polyester resin B has a specific functional group.Type: ApplicationFiled: July 28, 2014Publication date: February 5, 2015Inventors: Shuhei Moribe, Naoki Okamoto, Kosuke Fukudome, Satoshi Mita, Kunihiko Nakamura, Noriyoshi Umeda, Yoshiaki Shiotari, Tetsuya Ida
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Publication number: 20150037727Abstract: Provided is a toner has toner particle containing a crystalline polyester resin A, an amorphous resin B and a colorant, wherein (1) the crystalline polyester resin A is a resin that has a crystal nucleating agent segment (D) on the end of a polyester molecular chain (C), (2) the amorphous resin (B) is a hybrid resin in which a polyester unit (E) and a vinyl polymer unit (F) are chemically bonded, and (3) the SP value of the polyester molecular chain (C) (Sc), the SP value of the crystal nucleating agent segment (D) (Sd), the SP value of the polyester unit (E) (Se) and the SP value of the vinyl polymer unit (F) (Sf) satisfy specific relationships.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventors: Kosuke Fukudome, Shuhei Moribe, Naoki Okamoto, Kunihiko Nakamura, Noriyoshi Umeda, Yoshiaki Shiotari, Satoshi Mita, Tetsuya Ida
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Publication number: 20150003875Abstract: An object of the present invention is to provide a two-component developer which can achieve a high-definition image with a smaller toner laid-on level than a conventional one, provides a color gamut comparable to that of printing, can respond to an increase in printing speed, and allows an image with a stable tinge to be formed even in long-term use. The object can be achieved by a two-component developer containing a cyan toner and a magnetic carrier, the two-component developer being characterized in that the cyan toner has the following characteristics: (i) when the concentration of the cyan toner in a solution of the cyan toner in chloroform is represented by Cc (mg/ml) and the absorbance of the solution at a wavelength of 712 nm is represented by A712, a relationship between Cc and A712 satisfies the relationship of 2.00<A712/Cc<8.15; (ii) the lightness L* and chroma C* of the cyan toner determined in a powder state satisfy the relationships of 25.0?L*?40.0 and 50.0?C*?60.Type: ApplicationFiled: July 10, 2014Publication date: January 1, 2015Inventors: Koh Ishigami, Kazuo Terauchi, Noriyoshi Umeda, Tetsuya Ida, Naoki Okamoto, Yojiro Hotta, Yoshinobu Baba, Takayuki Itakura, Takeshi Yamamoto, Manami Haraguchi, Kenta Kubo
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Publication number: 20140178812Abstract: Provided is a toner satisfying low-temperature fixing performance and long-term storage stability of fixed images. Further, provided is a toner capable of obtaining toner images excellent in long-term storage stability irrespective of use environments even in the case where images are formed by a high-speed fixing system having low internal pressure of a fixing nip of a fixing device and a high printing speed. The toner includes toner particles containing a binder resin having a resin A and B, and a coloring agent, in which the resin A includes a resin including a moiety capable of forming a crystalline structure; the resin B includes a resin free of a moiety capable of forming a crystalline structure; and ?Hhigh and ?Hlow satisfy the expressions: 2??Hhigh?45 3[%]?{(?Hlow??Hhigh)/?Hlow}×100?70[%] where ?Hhigh and ?Hlow represent a heat of melting derived from the binder resin measured at a temperature increase speed of 100° C./min and 10° C./min, respectively.Type: ApplicationFiled: December 3, 2013Publication date: June 26, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Kosuke Fukudome, Shuhei Moribe, Satoshi Mita, Kazuo Terauchi, Yojiro Hotta, Tetsuya Ida
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Publication number: 20140099578Abstract: The toner of the present invention includes toner particles containing polyester resins A and B and a colorant, the A has a polyester portion including a portion capable of forming a crystal structure and a crystal nucleating agent portion, which is bonded to an end of the polyester portion, the B is free from any portions capable of forming a crystal structure, in a chart obtained as a result of GPC of a THF-soluble matter of the B, a ratio of a component having a molecular weight of 1500 or less in the B is 5.0 to 15.0% by area, and when an SP value of the polyester portion of the A is represented by Sa ((cal/cm3)1/2) and an SP value of the B is represented by Sb ((cal/cm3)1/2), the SP values Sa and Sb satisfy the following relationships: 9.50?Sa?11.00 ?0.65?Sb?Sa?0.70.Type: ApplicationFiled: December 11, 2013Publication date: April 10, 2014Applicant: Canon Kabushiki KaishaInventors: Yojiro Hotta, Shuhei Moribe, Kosuke Fukudome, Satoshi Mita, Kazuo Terauchi, Tetsuya Ida