Patents by Inventor Junichi Sasaki

Junichi Sasaki 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: 8609549
    Abstract: A plasma etching method is provided to perform a plasma etching on a silicon oxide film or a silicon nitride film formed below an amorphous carbon film by using a pattern of the amorphous carbon film as a final mask in a multilayer mask including a photoresist layer having a predetermined pattern, an organic bottom anti-reflection coating (BARC) film formed below the photoresist layer, an SiON film formed below the BARC film, and the amorphous carbon film formed below the SiON film. An initial mask used at the time when the plasma etching of the silicon oxide film or the silicon nitride film is started is under a state in which the SiON film remains on the amorphous carbon film and a ratio of a film thickness of the amorphous carbon film to a film thickness of the residual SiON film is smaller than or equal to about 14.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: December 17, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Sungtae Lee, Masahiro Ogasawara, Junichi Sasaki, Naohito Yanagida
  • Patent number: 8436589
    Abstract: An charging device includes: capacitors connected in series; a charging unit that charges the capacitors; bypass units, each respectively connects in parallel to each capacitors, wherein each bypass unit causes, when a charged voltage of any capacitor has reached a set voltage, a charging current to bypass the capacitor whose charged voltage has reached the set voltage; and a control unit that controls the charging unit to charge the capacitors in such a manner that, when a charging voltage of the any capacitor has reached the set voltage, the control unit causes the charging unit to reduce the charging current, and if a predetermined period has elapsed since the charging voltage has reached the set voltage, and if a charging voltage of any of the other capacitors has not reached the set voltage after the predetermined period, the control unit causes the charging unit to increase the charging current.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: May 7, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Junichi Sasaki
  • Publication number: 20130094883
    Abstract: An charging device includes: capacitors connected in series; a charging unit that charges the capacitors; bypass units, each respectively connects in parallel to each capacitors, wherein each bypass unit causes, when a charged voltage of any capacitor has reached a set voltage, a charging current to bypass the capacitor whose charged voltage has reached the set voltage; and a control unit that controls the charging unit to charge the capacitors in such a manner that, when a charging voltage of the any capacitor has reached the set voltage, the control unit causes the charging unit to reduce the charging current, and if a predetermined period has elapsed since the charging voltage has reached the set voltage, and if a charging voltage of any of the other capacitors has not reached the set voltage after the predetermined period, the control unit causes the charging unit to increase the charging current.
    Type: Application
    Filed: December 6, 2012
    Publication date: April 18, 2013
    Inventor: Junichi SASAKI
  • Patent number: 8322933
    Abstract: Information processing equipment includes a photoelectric conversion module disposed on a circuit substrate, a first optical connector connected to the photoelectric conversion module through a plurality of first optical fibers and disposed to an edge portion of the circuit substrate, and a second optical connector disposed on an optical backplane and optically connected to the first optical connector. The disposing direction of the optical fibers in the photoelectric conversion module is in nonparallel with the main surface of the circuit substrate and the disposing direction of the optical fibers in the first optical connector and the disposing direction of the optical fibers in the second optical connector are in nonparallel with the main surface of the circuit substrate.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: December 4, 2012
    Assignee: NEC Corporation
    Inventor: Junichi Sasaki
  • Patent number: 8317411
    Abstract: A connector holder fixes an optical connector assembled at a leading end of an optical fiber to an optical module having a light input/output end so that the optical fiber and the light input/output end is optically connected. The connector holder is provided with a holding section for storing at least a part of the optical connector, and a cover section attached to the holding section to be freely opened and closed. The cover section is provided with a cover section main body, and a pressing section which presses the optical connector toward the optical module.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: November 27, 2012
    Assignees: Fujikura Ltd., NEC Corporation
    Inventors: Kunihiko Fujiwara, Akito Nishimura, Kenji Sasaki, Yukio Hayashi, Kazuhiko Kurata, Takashi Yoshikawa, Junichi Sasaki
  • Patent number: 8267597
    Abstract: An optical module includes: an optical device mounting board including a first surface, a second surface on the reverse side, and a light transparent part allowing an emitted light traveling from the first surface to the second surface and a received light traveling in the opposite direction to pass through the transparent part; an optical device mounted on the first surface, which is a light emitting device or a light receiving device; a first terminal mounted on a surface except the first surface of the optical device mounting board; a wiring connecting a second terminal of a component mounted on the first surface including the optical device with the first terminal; and a transmission medium connector connecting a light transmission medium transmitting the emitted light traveling from the second surface to an outside of the optical module or the received light traveling in the opposite direction.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: September 18, 2012
    Assignee: NEC Corporation
    Inventor: Junichi Sasaki
  • Patent number: 8172467
    Abstract: An optical backplane connector with a board removable (being possible to insert and remove) therein in the direction perpendicular to the backplane plate surface is arranged on a backplane having optical transmission paths. The optical backplane connector accommodates a photoelectric conversion module in such a manner the incident and exit light are perpendicular to the backplane and a transparent board with a photoelectric conversion element mounted thereon is perpendicular to the board and parallel to the backplane. The conduction between the electric contacts of the photoelectric conversion module and the inner electric contacts of the optical backplane connector is held by mechanical contact. At the end portion of the optical transmission path on the backplane, an optical connector having a 45? mirror and guide pins is mounted. The positioning operation is achieved by fitting the guide pins of the optical connector with the guide holes of the photoelectric conversion module.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 8, 2012
    Assignee: NEC Corporation
    Inventors: Junichi Sasaki, Kazuhiko Kurata, Takashi Yoshikawa, Shigeyuki Yanagimachi
  • Publication number: 20120063729
    Abstract: A connector holder fixes an optical connector assembled at a leading end of an optical fiber to an optical module having a light input/output end so that the optical fiber and the light input/output end is optically connected. The connector holder is provided with a holding section for storing at least a part of the optical connector, and a cover section attached to the holding section to be freely opened and closed. The cover section is provided with a cover section main body, and a pressing section which presses the optical connector toward the optical module.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 15, 2012
    Applicants: NEC CORPORATION, FUJIKURA LTD.
    Inventors: Kunihiko Fujiwara, Akito Nishimura, Kenji Sasaki, Yukio Hayashi, Kazuhiko Kurata, Takashi Yoshikawa, Junichi Sasaki
  • Patent number: 8083418
    Abstract: A connector holder fixes an optical connector assembled at a leading end of an optical fiber to an optical module having a light input/output end so that the optical fiber and the light input/output end is optically connected. The connector holder is provided with a holding section for storing at least a part of the optical connector, and a cover section attached to the holding section to be freely opened and closed. The cover section is provided with a cover section main body, and a pressing section which presses the optical connector toward the optical module.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: December 27, 2011
    Assignees: Fujikura Ltd, NEC Corporation
    Inventors: Kunihiko Fujiwara, Akito Nishimura, Kenji Sasaki, Yukio Hayashi, Kazuhiko Kurata, Takashi Yoshikawa, Junichi Sasaki
  • Publication number: 20110250761
    Abstract: A plasma etching method is provided to perform a plasma etching on a silicon oxide film or a silicon nitride film formed below an amorphous carbon film by using a pattern of the amorphous carbon film as a final mask in a multilayer mask including a photoresist layer having a predetermined pattern, an organic bottom anti-reflection coating (BARC) film formed below the photoresist layer, an SiON film formed below the BARC film, and the amorphous carbon film formed below the SiON film. An initial mask used at the time when the plasma etching of the silicon oxide film or the silicon nitride film is started is under a state in which the SiON film remains on the amorphous carbon film and a ratio of a film thickness of the amorphous carbon film to a film thickness of the residual SiON film is smaller than or equal to about 14.
    Type: Application
    Filed: March 11, 2011
    Publication date: October 13, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Sungtae LEE, Masahiro Ogasawara, Junichi Sasaki, Naohito Yanagida
  • Patent number: 7983048
    Abstract: A mounting structure, in which semiconductor package 1 and heat sink 8 for dissipating heat generated from semiconductor package 1 are mounted on mounting board 3. The rear surface of semiconductor package 1 is bonded to the front surface of mounting board 3 facing the rear surface. Heat sink 8 is brought into contact with the rear surface of semiconductor package 1 via through-ole 5 formed on mounting board 3. Semiconductor package 1 and heat sink 8 are pressed to each other by the elastic force of clip 6.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: July 19, 2011
    Assignee: NEC Corporation
    Inventors: Junichi Sasaki, Tomoyuki Hino
  • Publication number: 20110012566
    Abstract: An charging device includes: capacitors connected in series; a charging unit that charges the capacitors; bypass units, each respectively connects in parallel to each capacitors, wherein each bypass unit causes, when a charged voltage of any capacitor has reached a set voltage, a charging current to bypass the capacitor whose charged voltage has reached the set voltage; and a control unit that controls the charging unit to charge the capacitors in such a manner that, when a charging voltage of the any capacitor has reached the set voltage, the control unit causes the charging unit to reduce the charging current, and if a predetermined period has elapsed since the charging voltage has reached the set voltage, and if a charging voltage of any of the other capacitors has not reached the set voltage after the predetermined period, the control unit causes the charging unit to increase the charging current.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 20, 2011
    Inventor: Junichi SASAKI
  • Publication number: 20100309635
    Abstract: A mounting structure, in which semiconductor package 1 and heat sink 8 for dissipating heat generated from semiconductor package 1 are mounted on mounting board 3. The rear surface of semiconductor package 1 is bonded to the front surface of mounting board 3 facing the rear surface. Heat sink 8 is brought into contact with the rear surface of semiconductor package 1 via through-ole 5 formed on mounting board 3. Semiconductor package 1 and heat sink 8 are pressed to each other by the elastic force of clip 6.
    Type: Application
    Filed: November 30, 2007
    Publication date: December 9, 2010
    Inventors: Junichi Sasaki, Tomoyuki Hino
  • Publication number: 20100218786
    Abstract: Provided are a storage medium and a cleaning method of a plasma processing apparatus capable of more securely removing a deposit and preventing occurrence of any problems caused by a remaining deposit as compared to the conventional method. A cleaning gas which contains an oxygen gas and a nitrogen gas and has a ratio of “nitrogen gas flow rate/(nitrogen gas flow rate+oxygen gas flow rate)” in a range from about 0.05 to about 0.5 is introduced into a processing chamber when a substrate is not mounted on a mounting table, and, then, the inside of the processing chamber is cleaned by applying a high frequency power between the mounting table and an upper electrode and exciting the cleaning gas into plasma.
    Type: Application
    Filed: February 24, 2010
    Publication date: September 2, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masahiro Ogasawara, Kenji Tago, Junichi Sasaki, Mafumi Sato
  • Patent number: 7783143
    Abstract: A semiconductor device has printed wiring board (11) where electric wiring (18) connected to LSI chip (17) and to planar optical element (21) is formed, and where optical waveguide (25) which transfers light inputted into planar optical element (21) and/or light outputted from planar optical element (21) is fixed. Planar optical element (21) is mounted in one end of small substrate (13), and another end of small substrate (13) is connected to printed wiring board (11) by solder bump (26). One end of small substrate (13) where planar optical element (21) is mounted is fixed to printed wiring board (11) by a fixing mechanism. Small substrate (13) has flexible section (15), which is easily deformable compared with other portions of printed wiring board (11) and small substrate (13), in at least a partial region between one end where planar optical element (21) is mounted and another end electrically connected to printed wiring board (11).
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: August 24, 2010
    Assignee: NEC Corporation
    Inventors: Kazunori Miyoshi, Kazuhiko Kurata, Takanori Shimizu, Ichiro Hatakeyama, Junichi Sasaki
  • Patent number: 7732340
    Abstract: A method for adjusting the lateral critical dimension (i.e., length and width) of a feature formed in a layer on a substrate using a dry etching process. One or more thin intermediate sub-layers are inserted in the layer within which the feature is to be formed. Once an intermediate sub-layer is reached during the etching process, an etch process is performed to correct and/or adjust the lateral critical dimensions before etching through the intermediate sub-layer and continuing the layer etch.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: June 8, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Toshifumi Nagaiwa, Junichi Sasaki, Stefan Sawusch
  • Publication number: 20100124528
    Abstract: The present invention relates to a columnar crystal silicon having a high strength. In the case where plasma etching device parts such as a focus ring, an upper electrode plate, and a shield ring which are formed from a high-strength columnar crystal silicon ingot having an interstitial oxygen concentration within a range of 1×1018 to 2×1018 atms/cm3, it is possible to further increase the diameters of these parts without increasing their thicknesses.
    Type: Application
    Filed: August 1, 2008
    Publication date: May 20, 2010
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventor: Junichi Sasaki
  • Publication number: 20100061683
    Abstract: An optical module includes: an optical device mounting board including a first surface, a second surface on the reverse side, and a light transparent part allowing an emitted light traveling from the first surface to the second surface and a received light traveling in the opposite direction to pass through the transparent part; an optical device mounted on the first surface, which is a light emitting device or a light receiving device; a first terminal mounted on a surface except the first surface of the optical device mounting board; a wiring connecting a second terminal of a component mounted on the first surface including the optical device with the first terminal; and a transmission medium connector connecting a light transmission medium transmitting the emitted light traveling from the second surface to an outside of the optical module or the received light traveling in the opposite direction.
    Type: Application
    Filed: August 21, 2009
    Publication date: March 11, 2010
    Inventor: JUNICHI SASAKI
  • Patent number: 7645075
    Abstract: An optical backplane includes an optical connector which receives juxtaposed optical signals transmitted in nonparallel to the main surface of a circuit substrate from the circuit substrate or transmits juxtaposed optical signals in nonparallel to the main surface of the circuit substrate to the circuit substrate. The optical connector disposes and accommodates edge portions of a plurality of optical fibers and the disposing direction of the optical fibers in the optical connector is in nonparallel to the main surface of the circuit substrate.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: January 12, 2010
    Assignees: NEC Corporation, Hirose Electric Co., Ltd., Sumitomo Electric Induestries, Ltd., Hitachi Chemical Company, Ltd.
    Inventors: Junichi Sasaki, Kazuhiko Kurata, Shuji Suzuki, Kazuhito Saito, Hiroshi Masuda, Osamu Ibaragi, Masao Kinoshita
  • Publication number: 20090310914
    Abstract: An optical backplane connector with a board removable (being possible to insert and remove) therein in the direction perpendicular to the backplane plate surface is arranged on a backplane having optical transmission paths. The optical backplane connector accommodates a photoelectric conversion module in such a manner the incident and exit light are perpendicular to the backplane and a transparent board with a photoelectric conversion element mounted thereon is perpendicular to the board and parallel to the backplane. The conduction between the electric contacts of the photoelectric conversion module and the inner electric contacts of the optical backplane connector is held by mechanical contact. At the end portion of the optical transmission path on the backplane, an optical connector having a 45? mirror and guide pins is mounted. The positioning operation is achieved by fitting the guide pins of the optical connector with the guide holes of the photoelectric conversion module.
    Type: Application
    Filed: April 21, 2006
    Publication date: December 17, 2009
    Applicant: NEC CORPORATION
    Inventors: Junichi Sasaki, Kazuhiko Kurata, Takashi Yoshikawa, Shigeyuki Yanagimachi