Patents by Inventor Masamichi Tanaka

Masamichi Tanaka 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).

  • Publication number: 20210048103
    Abstract: A power transmission device in an automatic transmission includes a friction tightening element (a second brake) having a drum member, and a transmission path constituent member (a third ring gear) coupled to the drum member via a coupling part extending circumferentially along the drum member, the drum member having low-rigidity parts (long holes) provided at a plurality of circumferential positions on the drum member in at least one of portions radially outside and inside the coupling part.
    Type: Application
    Filed: November 13, 2018
    Publication date: February 18, 2021
    Inventors: Masanori SASAKI, Masamichi FUJIKAWA, Kazuhiro YAMADA, Kensuke UEDA, Sayaka KATAYAMA, Yasuo MIURA, Takeyuki TANAKA, Hirokazu KOUNO, Takashi MIYAMOTO, Ryohei HANAMURE, Siyuan TAO
  • Publication number: 20210040274
    Abstract: Powder including low molecular weight polytetrafluoroethylene having a melt viscosity of 1×102 to 7×105 Pa·s at 380° C., having a melt viscosity of 1×102 to 7×105 Pa·s at 380° C., having an average particle size of 1.0 to 50 ?m, and containing 30 or more carboxyl groups at ends of the molecule chain per 106 carbon atoms in the main chain, wherein the powder is substantially free from C8-C14 perfluorocarboxylic acids and salts thereof.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ken YOSHIDA, Hirotoshi YOSHIDA, Keisuke HAGI, Masayuki TSUJI, Taketo KATO, Yuuji TANAKA, Taku YAMANAKA, Kazuya KAWAHARA, Masamichi SUKEGAWA, Kazutaka HOSOKAWA
  • Patent number: 10907668
    Abstract: A flow damper including a cylindrical vortex chamber, a small flow-rate pipe connected to a peripheral plate of the vortex chamber along a tangential direction, a large flow-rate pipe connected to the peripheral plate with a predetermined angle with respect to the small flow-rate pipe, an outlet pipe connected to an outlet formed in a central part of the vortex chamber, and a pressure equalization pipe with respective ends being connected to the peripheral plate on opposite sides of the outlet and at positions closer to a connection portion between the small flow-rate pipe and the large flow-rate pipe than positions facing each other, putting the outlet therebetween. The pressure equalization pipe is arranged with at least a part thereof is located at a higher position than a top plate of the vortex chamber, and an outgassing hole is provided at an uppermost part of the pressure equalization pipe.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: February 2, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Masamichi Iino, Shigeto Hirai, Taiki Asahara, Takafumi Ogino, Akira Kirita, Akihiro Toda, Hideyuki Sakata, Yutaka Tanaka, Setsuo Tokunaga, Takashi Nakahara, Takanori Okazaki
  • Patent number: 10900508
    Abstract: To include a cylindrical vortex chamber 35, a small flow-rate pipe 37 connected to a peripheral plate 35C of the vortex chamber 35 along a tangential direction thereof, a large flow-rate pipe 36 connected to the peripheral plate 35C with a predetermined angle with respect to the small flow-rate pipe 37, an outlet pipe connected to an outlet 39 formed in a central part of the vortex chamber 35, and a straightening plate 50 that is arranged in a part between the outlet 39 and the peripheral plate 35C of the vortex chamber 35, and when jets flow into the vortex chamber 35 from the small flow-rate pipe 37 and the large flow-rate pipe 36, straightens impinging jets from the small flow-rate pipe 37 and from the large flow-rate pipe 36 having flowed into the vortex chamber 35 toward the outlet 39.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: January 26, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hideyuki Sakata, Shigeto Hirai, Taiki Asahara, Takafumi Ogino, Akira Kirita, Akihiro Toda, Masamichi Iino, Toshihiro Sato, Yutaka Tanaka, Takanori Okazaki, Takashi Nakahara
  • Publication number: 20210018085
    Abstract: A breather device that communicates an inside of a case with an outside of the case in a vertical direction includes a cylindrical body having a hollow portion that extends in the vertical direction, a stopper inserted in the hollow portion, and a blocking body that is located in a space defined by the stopper in the hollow portion, and blocks a communicating hole provided in a lower part of the cylindrical body as viewed in the vertical direction. The communicating hole ceases to be blocked when the pressure inside the case exceeds a first predetermined value, and the blocking body moves upward in the vertical direction in the space.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Guodong TAN, Shinichi ITO, Yukihiko IDESHIO, Masashi IKEMURA, Takashi IIJIMA, Masamichi YAMAGUCHI, Keisuke TANAKA, Tetsuya YAMAGUCHI, Ryota YOSHIMOTO
  • Publication number: 20210003932
    Abstract: A toner including a toner particle including a binder resin, wherein fine particles A and B are present on a surface of the toner particle; the fine particles A are a fatty acid metal salt; the fine particles B have a specific volume resistivity; an average theoretical surface area of the toner particle, an amount of the fine particles A, and a coverage ratio of the toner particle surface by the fine particles A satisfy a specific relationship; the amount of the fine particles B is in a specific range; and a proportion F of an area occupied by a part of the fine particles B embedded in a surface vicinity region of the toner in a total area occupied by the fine particles B present in a cross section of one particle of the toner is 50% by area or more.
    Type: Application
    Filed: June 25, 2020
    Publication date: January 7, 2021
    Inventors: Shohei Tsuda, Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura, Masamichi Sato
  • Publication number: 20200403707
    Abstract: A transmitting apparatus includes: a first processor circuit; a second processor circuit; a modulation circuit; and a switch circuit, wherein the first processor circuit is configured to execute a generating process that includes mapping each of a plurality of bit strings to a symbol in predetermined order for each number of bits according to a multivalued degree of a multilevel modulation method, and generating a symbol information piece according to the symbol, wherein the modulation circuit is configured to modulate light in accordance with the symbol information piece based on the multilevel modulation method; wherein the second processor circuit is configured to execute a detecting process that includes detecting each of inputs of a plurality of data signals, wherein the switch circuit is configured to select the plurality of bit strings based on a detection result of inputs of the plurality of data signals,
    Type: Application
    Filed: June 17, 2020
    Publication date: December 24, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Masamichi Sugamoto, Ryo Murakami, YUICHIRO TANAKA, Junichi Sugiyama, Kenichi Miyama, Tomoaki Takeyama
  • Patent number: 10870735
    Abstract: The invention provides a production method for producing low molecular weight polytetrafluoroethylene enabling easy removal of most of C8-C14 perfluorocarboxylic acids and salts thereof, which are unfortunately generated by irradiation, from the low molecular weight polytetrafluoroethylene. The method for producing low molecular weight polytetrafluoroethylene includes: (1) irradiating polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity of 1×102 to 7×105 Pa·s at 380° C.; (2) pulverizing the low molecular weight polytetrafluoroethylene; and (3) heating the low molecular weight polytetrafluoroethylene pulverized in the step (2).
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 22, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Ken Yoshida, Hirotoshi Yoshida, Keisuke Hagi, Masayuki Tsuji, Taketo Kato, Yuuji Tanaka, Taku Yamanaka, Kazuya Kawahara, Masamichi Sukegawa, Kazutaka Hosokawa
  • Publication number: 20200395501
    Abstract: Provided is a superluminescent diode including an optical waveguide body configured as a double heterostructure including an active layer and a first clad layer and a second clad layer interposing the active layer. When a direction perpendicular to both an optical waveguide direction of the optical waveguide body and a facing direction of the first clad layer and the second clad layer is set as a width direction, the active layer is provided with a limitation region extending along the optical waveguide direction and partitioning the active layer in the width direction. Carriers are less likely to be generated in the limitation region than in a region other than the limitation region in the active layer.
    Type: Application
    Filed: November 29, 2018
    Publication date: December 17, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Masamichi YAMANISHI, Toru HIROHATA, Kazunori TANAKA, Kazuue FUJITA, Akira HIGUCHI
  • Patent number: 10840406
    Abstract: An optical semiconductor element includes: an optical waveguide body; a first electrode that is disposed on the second clad layer; a second electrode that is disposed on a second clad layer on one side of the first electrode in a light guiding direction of the optical waveguide body; a third electrode that is disposed on the second clad layer on the other side of the first electrode in the light guiding direction; and at least one fourth electrode that faces the first electrode, the second electrode, and the third electrode with the optical waveguide body interposed therebetween. The optical waveguide body includes a first separation region that electrically separates a first region under the first electrode from a second region under the second electrode and a second separation region that electrically separates the first region under the first electrode and a third region under the third electrode.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 17, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Masamichi Yamanishi, Akira Higuchi, Toru Hirohata, Kazunori Tanaka, Kazuue Fujita, Yasufumi Takagi, Yuta Aoki, Satoru Okawara
  • Patent number: 10793650
    Abstract: Low molecular weight polytetrafluoroethylene powder having a complex viscosity of 1×102 to 7×105 Pa·s at 380° C., containing 5 or less carboxyl groups at ends of the molecule chain per 106 carbon atoms in the main chain, and being substantially free from C8-C14 perfluorocarboxylic acids and salts thereof. Also disclosed is a method for producing low molecular weight polytetrafluoroethylene.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 6, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Ken Yoshida, Hirotoshi Yoshida, Keisuke Hagi, Masayuki Tsuji, Taketo Kato, Yuuji Tanaka, Taku Yamanaka, Kazuya Kawahara, Masamichi Sukegawa, Kazutaka Hosokawa
  • Patent number: 10732168
    Abstract: Provided are a cell imaging device and a cell imaging method that can shorten the time period of taking images of cells in a liquid sample, compared with conventional techniques. This cell imaging device introduces a urine sample containing cells into an internal space of a sample cell, moves at least one of the sample cell and an objective lens in a second direction while at least one of the sample cell and the objective lens is moved in a first direction, the second direction being different from the first direction, and takes, at a plurality of imaging positions, images of cells contained in the urine sample by means of an imaging unit.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: August 4, 2020
    Assignee: SYSMEX CORPORATION
    Inventors: Masakazu Fukuda, Masamichi Tanaka, Yanyan Liu, Ryosuke Fujii, Takumi Inutsuka, Tomoyuki Tsukahara
  • Publication number: 20200209775
    Abstract: A toner containing: a toner particle that contains a binder resin and an external additive, wherein the external additive contains an organosilicon polymer fine particle, the binder resin contains an amorphous resin and a crystalline polyester resin, a content of the crystalline polyester resin in the binder resin is from 5 to 30 mass %, and the crystalline polyester resin contains from 5 to 25 mass % of a component having a molecular weight of not more than 2,500.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventors: Masatake Tanaka, Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga
  • Publication number: 20200209773
    Abstract: A toner including a toner particle containing a binder resin and an external additive, wherein the toner particle contains a polyvalent metal compound, the polyvalent metal compound is at least one selected from the group consisting of aluminum compounds, iron compounds and magnesium compounds, a content of a metal element derived from the polyvalent metal compound in the toner particle is from 0.080 to 20.000 ?mol/g, the external additive contains an organosilicon polymer particle having a hydroxyl group, a ratio of a number-average particle diameter of the organosilicon polymer particle to a number-average particle diameter of the toner particle is from 0.0160 to 0.0650, and a content of the organosilicon polymer particle is at least 0.10 mass parts per 100.00 mass parts of the toner particle.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventors: Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki
  • Publication number: 20200209776
    Abstract: A toner including a toner particle containing a binder resin, and an external additive, wherein the external additive contains an organosilicon polymer fine particle, the organosilicon polymer has a structure represented by at least one selected from the group consisting of RaSiO3/2 and Rb2SiO2/2 (wherein Ra and Rb represent organic groups), and in the number particle size distribution of the toner as measured within a particle size range of from 2 to 60 ?m, the number-average particle diameter T-D50n at which the accumulation from the smallest diameter is 50% is from 6 to 12 ?m, the number ratio of toner 4 ?m or less in size is from 2% to 5% of the total toner, and the number ratio of toner 3 ?m or less in size as a percentage of the total toner 4 ?m or less in size is from 25% to 50%.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventors: Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura, Masamichi Sato
  • Publication number: 20200209767
    Abstract: A toner including a toner particle containing a binder resin and an external additive, wherein the external additive contains composite particles of an organosilicon polymer fine particle and a fatty acid metal salt.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventors: Masamichi Sato, Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura
  • Publication number: 20200209774
    Abstract: Provided is a toner including a toner particle and an external additive, wherein the external additive includes a composite particle including a hydrotalcite particle covered on the surface with an organosilicon polymer fine particle, a coverage ratio of the hydrotalcite particle surface by the organosilicon polymer fine particle is from 1% to 50%, and given A (nm) as the number-average particle diameter of the primary particles of the organosilicon polymer fine particle and B (nm) as the number-average particle diameter of the primary particles of the hydrotalcite particle, the toner satisfies the following formula (I) and formula (II): A<B??(I) 20?A?350??(II).
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Inventors: Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka
  • Publication number: 20200158624
    Abstract: A urine analysis system according to an embodiment includes: a testing apparatus that measures particles included in a urine sample according to a flow cytometry method; an image capturing apparatus that captures images of particles in the urine sample to acquire particle images; and a management apparatus that receives a measurement result obtained by the testing apparatus and the particle images acquired by the image capturing apparatus. The management apparatus generates an order to capture an image of the urine sample based on the measurement result obtained by the testing apparatus. The image capturing apparatus executes the image capturing processing of the particles in the urine sample for which the image capturing order has been generated by the management apparatus, and transmits the acquired particle images to the management apparatus.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Applicant: SYSMEX CORPORATION
    Inventors: Masakazu FUKUDA, Masamichi TANAKA, Yousuke TANAKA
  • Patent number: 10655694
    Abstract: A friction engagement device of an automatic transmission is provided, which includes a rotational member comprised of at least one of a drum member and a hub member including a spline part engaged with a friction plate to be movable in axial directions of the automatic transmission, and a drive force transmitting part for exchanging a drive force with another rotational element. The drive force transmitting part of the rotational member is made of a ferrous metal. A part of the rotational member other than the drive force transmitting part is made of a clad material containing a first material that is easily joined to the ferrous metal and a second material that is less easily joined to the ferrous metal compared to the first material and weighs less than the ferrous metal.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 19, 2020
    Assignee: Mazda Motor Corporation
    Inventors: Shinya Okumura, Kazuyuki Shiino, Hirokazu Kouno, Masanori Sasaki, Masamichi Fujikawa, Yasuo Miura, Masashi Morihiro, Takeyuki Tanaka, Yuya Takemura
  • Publication number: 20200123283
    Abstract: Low molecular weight polytetrafluoroethylene powder having a complex viscosity of 1×102 to 7×103 Pa·s at 380° C., containing 5 or less carboxyl groups at ends of the molecule chain per 106 carbon atoms in the main chain, and being substantially free from C8-C14 perfluorocarboxylic acids and salts thereof. Also disclosed is a method for producing low molecular weight polytetrafluoroethylene.
    Type: Application
    Filed: November 26, 2019
    Publication date: April 23, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ken YOSHIDA, Hirotoshi Yoshida, Keisuke Hagi, Masayuki Tsuji, Taketo Kato, Yuuji Tanaka, Taku Yamanaka, Kazuya Kawahara, Masamichi Sukegawa, Kazutaka Hosokawa