Patents by Inventor Ryoichi Maeda

Ryoichi Maeda 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: 20240079222
    Abstract: A surface modifying apparatus is configured to modify a bonding surface of a substrate to be bonded to another substrate by plasma of a processing gas. The surface modifying apparatus includes a processing vessel; a measuring unit; and a controller. The processing vessel is configured to accommodate the substrate therein. The measuring unit is configured to measure a value indicating an amount of moisture in the processing vessel. The controller is configured to determine whether or not bonding strength between the substrate and the another substrate, when it is assumed that the substrate modified in the processing vessel is bonded to the another substrate, is good based on the value indicating the amount of moisture in the processing vessel measured by the measuring unit.
    Type: Application
    Filed: January 19, 2022
    Publication date: March 7, 2024
    Inventors: Takashi Terada, Yuji Mimura, Hiroshi Maeda, Takuro Masuzumi, Masaru Honda, Ryoichi Sakamoto
  • Publication number: 20240079214
    Abstract: A surface modifying method of modifying a bonding surface of a substrate to be bonded to another substrate by plasma of a processing gas includes an adjusting process and a modifying process. In the adjusting process, an amount of moisture in a processing vessel is adjusted by supplying a humidified gas into the processing vessel allowed to accommodate the substrate therein. In the modifying process, the bonding surface of the substrate is modified by forming the plasma of the processing gas in the processing vessel in a state that the amount of moisture in the processing vessel is adjusted.
    Type: Application
    Filed: January 13, 2022
    Publication date: March 7, 2024
    Inventors: Yuji Mimura, Hiroshi Maeda, Takuro Masuzumi, Takashi Terada, Masaru Honda, Ryoichi Sakamoto, Takashi Fuse, Yusuke Kubota
  • Patent number: 7997155
    Abstract: A load sensor includes a base substrate having two holes as two fixing portions to a frame member as a detection object, a pair of strain detecting elements provided on a surface of the base substrate, and input-output terminals provided on the surface of the base substrate. The strain detecting elements are arranged in a region that is between the holes and is opposite the input-output terminals with respect to at least one of the holes.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: August 16, 2011
    Assignees: ALPS Electric Co., Ltd., NTN Corporation
    Inventors: Ryoichi Maeda, Yoshiharu Terauchi, Tekayuki Norimatsu, Kentaro Nishikawa
  • Publication number: 20100251834
    Abstract: A load sensor includes a base substrate having two holes as two fixing portions to a frame member as a detection object, a pair of strain detecting elements provided on a surface of the base substrate, and input-output terminals provided on the surface of the base substrate. The strain detecting elements are arranged in a region that is between the holes and is opposite the input-output terminals with respect to at least one of the holes.
    Type: Application
    Filed: June 18, 2010
    Publication date: October 7, 2010
    Applicants: ALPS ELECTRIC CO., LTD., NTN CORPORATION
    Inventors: Ryoichi Maeda, Yoshiharu Terauchi, Takayuki Norimatsu, Kentaro Nishikawa
  • Publication number: 20100170722
    Abstract: A load detecting device includes: a load sensor which outputs a signal in response to a load; and a plurality of tensile members which support the load sensor in a state where the load sensor is tensioned in multiple directions and stretch the load sensor in the multiple directions by receiving the load, wherein the load sensor outputs a signal in response to the load received by the plurality of tensile members on the basis of tensile forces of the plurality of tensile members.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 8, 2010
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventor: Ryoichi MAEDA
  • Patent number: 7343223
    Abstract: A load sensor that is inoperable even when applied with a large load, has a simple structure easily designed to be lightweight and compact and can detect a load with a high accuracy, and a legged robot apparatus including the load sensor in each of legs thereof. The robot apparatus includes the load sensors counting more than one and each of which detects, as an external force, a reaction applied when the leg abuts a ground surface. The load sensor includes a diaphragm, an activating member that is applied with an external force, a driving member forming along with the activating member a double structure and which presses the pressure-sensitive portion, and an elastic member.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: March 11, 2008
    Assignees: Alps Electric Co., Ltd., Sony Corporation
    Inventors: Akito Miura, Ryoichi Maeda, Susumu Tosaka, Takeshi Igarashi, Goushi Koike
  • Publication number: 20070107526
    Abstract: A load sensor includes fixed portions, a load bearing portion subjected to a load, and strain detecting elements each detecting a strain of a substrate in response to the load. In this load sensor, slits each of which can disperse a stress applied to the substrate in response to the load, are formed in the substrate.
    Type: Application
    Filed: October 24, 2006
    Publication date: May 17, 2007
    Inventors: Yoshiharu Terauchi, Ryoichi Maeda
  • Publication number: 20040181312
    Abstract: There are provided a load sensor that cannot be broken even when applied with a large load, has a simple structure easily designed to be lightweight and compact and can detect a load with a high accuracy, and a legged robot apparatus including the load sensor in each of legs thereof. The robot apparatus includes the load sensors counting more than one and each of which detects, as an external force, a reaction applied when the leg abuts a ground surface. The load sensor (10) includes a diaphragm (11) having a pressure-sensitive portion (11a), an activating member (14) that is applied with an external force, a driving member (17) forming along with the activating member (14) a double structure and which presses the pressure-sensitive portion (11a), and an elastic member (15) that is displaced generally proportionally to the magnitude of an external force applied to the activating member (14) to convey the external force to the driving member (17).
    Type: Application
    Filed: March 10, 2004
    Publication date: September 16, 2004
    Inventors: Akito Miura, Ryoichi Maeda, Susumu Tosaka, Takeshi Igarashi, Goushi Koike
  • Patent number: 6634235
    Abstract: A load sensor is provided, which prevents defective printing of strain-sensing elements caused by the deflection of a pressure-receiving portion and provides stabilized quality and fabrication yields. The load sensor is provided with the strain-sensing elements printed on the pressure-receiving portion. The tip portion of the strain generating portions having a loading point is allowed to stay in advance below the plane containing the print surface of the strain generating portions in the direction of thickness. The tip portion of the pressure-receiving portion will never stay above the print surface of the strain generating portions even when the pressure-receiving portion is deflected in the heating process during fabrication. Therefore, this makes it possible to avoid defective printing of the strain-sensing elements caused by the deflection of the pressure-receiving portion.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: October 21, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Ryoichi Maeda, Akito Miura, Koichi Takahashi, Osamu Tanabe, Kiyoshi Suzuki
  • Patent number: 6589118
    Abstract: An input device for a game machine for inputting signals to a game machine using a computer, including: at least one control member projecting to the outside of a casing; a movement-transmitting member formed around the control member and operatively associated with the movement of an operating point of the control member, the movement-transmitting member being provided with a plurality of conductive elastic members; and a board provided in the casing and having formed thereon resistors corresponding to the conductive elastic members, the conductive elastic members changing the area of contact between the conductive elastic members and the resistors according to a direction of movement and a tilt angle of the operating point of the control member so as to vary the amount of resistance; wherein, by moving the operating point of the control member, analog signals corresponding to the movement are input to the game machine.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: July 8, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Masahiro Soma, Toshio Furudate, Ryoichi Maeda
  • Patent number: 6512510
    Abstract: In a keyboard device of the present invention, a leader portion formed integrally with a film substrate is provided with switch terminal portions and pointing device terminal portions, and the film substrates are provided with lead-out conductors to be led out to the pointing device terminal portions. A flexible substrate is provided with connection conductors. The connection conductors are connected to lead-out conductors adjacent to the pointing device.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 28, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventor: Ryoichi Maeda
  • Patent number: 6484119
    Abstract: There is provided an input device which is small, has good productivity, is inexpensive, and can be surface-mounted. In an input device of the present invention, a plurality of terminals of a metal material connected to deflection detecting elements are connected in a substrate portion of an operation member, and the terminal allows the input device to be surface-mounted on a print board. It is thus possible to provide the input device which is inexpensive and small without using a conventional, large flexible substrate.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: November 19, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kazuo Kaneo, Toshio Ogawa, Katsuhiko Tochihara, Ryoichi Maeda, Hirofumi Okumura
  • Patent number: 6477904
    Abstract: An input device has a control member having an operating part and a base part. The base part has arms and connecting parts connecting the adjacent arms. Strain gages are placed on the arms, respectively. Projections are formed on the connecting parts or a holding member for holding the control member thereon to secure spaces between the arms and the holding member to enable the arms to be strained greatly when the operating part is tilted so that the respective electrical resistances of the strain gages can be changed greatly for the slight tilting of the operating part of the control member.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: November 12, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Ryoichi Maeda, Kazuo Kaneo, Takeshi Akahama
  • Patent number: 6420956
    Abstract: A first resistive element and a second resistive element are serially connected to each other, and a contact element having a lower resistivity than the first resistive element elastically contacts the first resistive element. The resistance between both ends of the first resistive element varies with the contact area between the first resistive element and the contact element. When a predetermined voltage is applied to the first and the second resistive elements, an output voltage, which corresponds to the resistance ratio of the first resistive element to the second resistive element, is obtained from a conductive pattern. When the resistance ratio of the first resistive element to the second resistive element is set in the range of 1 to 3, the linearity is improved and a wide variation range of the output voltage is obtained.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: July 16, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Toshio Furudate, Ryoichi Maeda
  • Publication number: 20020062700
    Abstract: A load sensor is provided, which prevents defective printing of strain-sensing elements caused by the deflection of a pressure-receiving portion and provides stabilized quality and fabrication yields. The load sensor is provided with the strain-sensing elements printed on the pressure-receiving portion. The tip portion of the strain generating portions having a loading point is allowed to stay in advance below the plane containing the print surface of the strain generating portions in the direction of thickness. The tip portion of the pressure-receiving portion will never stay above the print surface of the strain generating portions even when the pressure-receiving portion is deflected in the heating process during fabrication. Therefore, this makes it possible to avoid defective printing of the strain-sensing elements caused by the deflection of the pressure-receiving portion.
    Type: Application
    Filed: November 7, 2001
    Publication date: May 30, 2002
    Applicant: ALPS ELECTRIC CO., LTD.
    Inventors: Ryoichi Maeda, Akito Miura, Koichi Takahashi, Osamu Tanabe, Kiyoshi Suzuki
  • Publication number: 20020050918
    Abstract: A first resistive element and a second resistive element are serially connected to each other, and a contact element having a lower resistivity than the first resistive element elastically contacts the first resistive element. The resistance between both ends of the first resistive element varies with the contact area between the first resistive element and the contact element. When a predetermined voltage is applied to the first and the second resistive elements, an output voltage, which corresponds to the resistance ratio of the first resistive element to the second resistive element, is obtained from a conductive pattern. When the resistance ratio of the first resistive element to the second resistive element is set in the range of 1 to 3, the linearity is improved and a wide variation range of the output voltage is obtained.
    Type: Application
    Filed: July 30, 2001
    Publication date: May 2, 2002
    Applicant: Alps Electric Co., Ltd.
    Inventors: Toshio Furudate, Ryoichi Maeda
  • Publication number: 20020011122
    Abstract: An input device has a control member having an operating part and a base part. The base part has arms and connecting parts connecting the adjacent arms. Strain gages are placed on the arms, respectively. Projections are formed on the connecting parts or a holding member for holding the control member thereon to secure spaces between the arms and the holding member to enable the arms to be strained greatly when the operating part is tilted so that the respective electrical resistances of the strain gages can be changed greatly for the slight tilting of the operating part of the control member.
    Type: Application
    Filed: October 12, 1999
    Publication date: January 31, 2002
    Inventors: RYOICHI MAEDA, KAZUO KANEO, TAKESHI AKAHAMA
  • Patent number: 6275138
    Abstract: The conventional variable resistor has a problem in that, because a pressure-sensitive member made of a pressure-sensitive conductive rubber is used, a serious scattering is caused in the characteristic (change curve), and scattering of thickness in the manufacture of the pressure-sensitive member results in a large scatter of the characteristic (change curve). The variable resistor of the invention uses the first resistor pattern forming the variable resistor. It is therefore possible to provide a variable resistor which scattering in the manufacture is smaller, can achieve a uniform resistance change characteristic, and gives a high accuracy.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: August 14, 2001
    Assignee: ALPS Electric Co., Ltd.
    Inventor: Ryoichi Maeda
  • Patent number: 5056487
    Abstract: For example, while the state of combustion of an internal combustion engine is detected from a cylinder pressure at the top dead center of the cylinders, if a decision has been made that the detected combustion state is an irregular combustion state, on the basis of a result of comparison between a torque waveform corresponding to the irregular combustion state and a torque waveform under normal combustion state, this torque control apparatus for internal combustion engines according to this invention puts into operation a torque correcting device, such as a motor-generator, mounted fixedly to the internal combustion engine, thereby making the former torque waveform approach the latter torque waveform. Therefore, even when an irregular combustion occurs in the internal combustion engine, the torque waveform is substantially free from irregularity, so that vibration and an abnormal noise can be prevented.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: October 15, 1991
    Assignees: Hitachi, Ltd., Nissan Motor Co., Ltd.
    Inventors: Makoto Yamakado, Yuzo Kadomukai, Ryoichi Maeda, Masao Fukushima, Kei Murakami
  • Patent number: 4982707
    Abstract: In order to suppress vibrations which are produced by engine misfiring during idling, the load on an alternator is momentarily increased with a given time after the detection of a misfire as detected by a cylinder pressure sensor.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: January 8, 1991
    Assignees: Nissan Motor Co., Ltd., Hitachi, Ltd.
    Inventors: Ryoichi Maeda, Yuzo Kadomukai, Makoto Yamakado