Patents by Inventor Hiromichi Kato

Hiromichi Kato 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: 9153081
    Abstract: Of a counter apparatus, a first microcomputer and a second microcomputer communicate with each other and receive a crank signal with pulses. The first microcomputer detects a first pulse count number at a detection time point and transmits it to the second microcomputer. The second microcomputer detects a second pulse count number at a determination time point, which is an allowable delay time period later from the detection time point. The allowable delay time period is expected to elapse from the detection time point to when the first pulse count number is received by the second microcomputer. The second pulse count number is compared with a determination value, which is the sum of (i) the first pulse count number and (ii) the largest integer not greater than the quotient of T2/T1, T1 being a pulse period of the crank signal, T2 being the allowable delay time period.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: October 6, 2015
    Assignee: DENSO CORPORATION
    Inventor: Hiromichi Kato
  • Publication number: 20140119489
    Abstract: Of a counter apparatus, a first microcomputer and a second microcomputer communicate with each other and receive a crank signal with pulses. The first microcomputer detects a first pulse count number at a detection time point and transmits it to the second microcomputer. The second microcomputer detects a second pulse count number at a determination time point, which is an allowable delay time period later from the detection time point. The allowable delay time period is expected to elapse from the detection time point to when the first pulse count number is received by the second microcomputer. The second pulse count number is compared with a determination value, which is the sum of (i) the first pulse count number and (ii) the largest integer not greater than the quotient of T2/T1, T1 being a pulse period of the crank signal, T2 being the allowable delay time period.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 1, 2014
    Applicant: DENSO CORPORATION
    Inventor: Hiromichi KATO
  • Patent number: 8556640
    Abstract: An electrical connector is miniaturized and reduced in profile height, yet maintains strength and connection stability, uses elastic fixtures as a power source and provides stable fitting. When connectors are fitted with each other, a first contact of an elastic first fixture is brought to contact a second contact of a second fixture to be used as a power source. An inclined portion of a receptacle contact and an inclined portion of an insertion hole of a housing are formed roughly in the same shape to adjust support of the receptacle contact and provide stable connection. A first chamfered portion of the receptacle contact engages a recess of a plug contact to produce a clicking feeling. The first chamfered portions are positioned and brought to contact the recesses so the plug contact is held between a contact portion and an elastic portion of the receptacle contact.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: October 15, 2013
    Assignee: DDK Ltd.
    Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yoshinori Iwashita, Hiromichi Kato, Hidenori Ikushima
  • Publication number: 20130012074
    Abstract: An electrical connector is miniaturized and reduced in profile height, yet maintains strength and connection stability, uses elastic fixtures as a power source and provides stable fitting. When connectors are fitted with each other, a first contact means of an elastic first fixture is brought to contact a second contact means of a second fixture to be used as a power source. An inclined portion of a receptacle contact and an inclined portion of an insertion hole of a housing are formed roughly in the same shape to adjust support of the receptacle contact and provide stable connection. A first chamfered portion of the receptacle contact engages a recess of a plug contact to produce a clicking feeling. The first chamfered portions are positioned and brought to contact the recesses so the plug contact is held between a contact portion and an elastic portion of the receptacle contact.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: DDK LTD.
    Inventors: Jinichi MASHIYAMA, Toshihiko HIRAI, Yoshinori IWASHITA, Hiromichi KATO, Hidenori IKUSHIMA
  • Patent number: 7901218
    Abstract: An electrical connector includes a receptacle connector and a plug connector. A first fixture and a second fixture are each arranged on at least one end in the longitudinal direction of the receptacle and plug connectors, respectively. The first and second fixtures each have connection portions to be connected to a respective substrate. The first and second fixtures include at least three engaging portions and at least three anchoring portions, respectively. The engaging portions and anchoring portions are adapted to engage each other. At least one set of the engaging and anchoring portions engaged each other is caused to be in electrical continuity to use as a power supply connection.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: March 8, 2011
    Assignee: DDK Ltd.
    Inventors: Kazuhiro Sato, Hiromichi Kato, Hirokazu Takahashi
  • Patent number: 7874857
    Abstract: A card connector for a plurality of memory cards includes a housing having a plurality of inserting holes for the memory cards, respectively. The card connector includes a swing member made of an elastic metal plate and having fixing portions and a swing part in the form of a hollow square rod having extending portions extending into the inserting holes when the swing member is fixed in the housing. A partition wall between the inserting holes is formed with a rectangular notch and slits in opposite faces of the rectangular notch for press-fitting the fixing portions of the swing member, respectively. When one memory card is inserted into one inserting hole, the inserted memory card causes the swing part to be further extended into another inserting hole, thereby preventing another memory card from being inserted into the another inserting hole.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: January 25, 2011
    Assignee: DDK Ltd.
    Inventors: Kazunori Takei, Hitoshi Kikuchi, Hirokazu Takahashi, Hiromichi Kato
  • Publication number: 20100221928
    Abstract: An electrical connector includes a receptacle connector and a plug connector. A first fixture and a second fixture are each arranged on at least one end in the longitudinal direction of the receptacle and plug connectors, respectively. The first and second fixtures each have connection portions to be connected to a respective substrate. The first and second fixtures include at least three engaging portions and at least three anchoring portions, respectively. The engaging portions and anchoring portions are adapted to engage each other. At least one set of the engaging and anchoring portions engaged each other is caused to be in electrical continuity to use as a power supply connection.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Inventors: Kazuhiro Sato, Hiromichi Kato, Hirokazu Takahashi
  • Publication number: 20100190365
    Abstract: A card connector for a plurality of memory cards includes a housing having a plurality of inserting holes for the memory cards, respectively. The card connector includes a swing member made of an elastic metal plate and having fixing portions and a swing part in the form of a hollow square rod having extending portions extending into the inserting holes when the swing member is fixed in the housing. A partition wall between the inserting holes is formed with a rectangular notch and slits in opposite faces of the rectangular notch for press-fitting the fixing portions of the swing member, respectively. When one memory card is inserted into one inserting hole, the inserted memory card causes the swing part to be further extended into anther inserting hole, thereby preventing another memory card from being inserted into the another inserting hole.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 29, 2010
    Inventors: Kazunori Takei, Hitoshi Kikuchi, Hirokazu Takahashi, Hiromichi Kato
  • Patent number: 7612993
    Abstract: A card connector includes a plurality of contacts adapted to contact memory cards, a housing holding the contacts and having a plurality of inserting openings arranged in vertically overlapping relationship for inserting memory cards, respectively, and a shell covering the housing. A pivot member is installed at a predetermined position in the housing so as to be pivotally moved when one memory card is inserted in one of the inserting openings such that part of the pivot member extends into all the inserting openings except for the one inserting opening, thereby preventing a further memory card from being inserted into the card connector. In assembling, after the pivot member is set in the housing so that protrusions provided in the housing are fitted in slits formed in the pivot member, the shell is fitted on the housing to push the pivoting member into the predetermined position.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: November 3, 2009
    Assignee: DDK Ltd.
    Inventors: Kazunori Takei, Hitoshi Kikuchi, Hirokazu Takahashi, Hiromichi Kato
  • Patent number: 7575466
    Abstract: An electrical connector to be detachably fitted with a mating connector, including a plurality of contacts, a housing for arranging and holding the contacts, and a shell covering the housing and forming with the housing a fitting opening for the mating connector. The shell has at least one engaging piece, and the housing has an anchoring portion at a location corresponding to the engaging piece to cause the anchoring portion to engage the engaging piece, thereby restraining the housing from being displaced in the direction opposite to the fitting direction upon fitting with the mating connector. Even being miniaturized, the electrical connector is securely positioned relative to the mating connector when fitting with it, and the housing is securely prevented from being displaced upon the mating connector abutting against the housing, thereby completely preventing any defective connection.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: August 18, 2009
    Assignee: DDK Ltd.
    Inventors: Shinya Ishizuka, Akio Yamada, Kazuyuki Ozai, Hiromichi Kato
  • Publication number: 20080214050
    Abstract: An electrical connector to be detachably fitted with a mating connector, including a plurality of contacts, a housing for arranging and holding the contacts, and a shell covering the housing and forming with the housing a fitting opening for the mating connector. The shell has at least one engaging piece, and the housing has an anchoring portion at a location corresponding to the engaging piece to cause the anchoring portion to engage the engaging piece, thereby restraining the housing from being displaced in the direction opposite to the fitting direction upon fitting with the mating connector. Even being miniaturized, the electrical connector is securely positioned relative to the mating connector when fitting with it, and the housing is securely prevented from being displaced upon the mating connector abutting against the housing, thereby completely preventing any defective connection.
    Type: Application
    Filed: January 11, 2008
    Publication date: September 4, 2008
    Applicant: DDK LTD.
    Inventors: Shinya ISHIZUKA, Akio Yamada, Kazuyuki Ozai, Hiromichi Kato
  • Publication number: 20080214031
    Abstract: An electrical connector includes a plurality of contacts to be connected to a cable, a housing for arranging and holding the contacts, a shell dividable into two shells covering the housing and having a holding device for holding the cable, and an insulating member covering the shell. One of the shells is provided with anchoring portions and the other shell is provided with engaging portions so that when both the shells are fitted with each other, the anchoring portions and the engaging portions are engaged with each other to bring both the shells into electrical continuity with each other. Therefore, the shells can be securely held together to achieve reliable electrical continuity between the shells, and at the same time grounding between the cable and the shell and between the shells themselves can be achieved.
    Type: Application
    Filed: February 26, 2008
    Publication date: September 4, 2008
    Applicant: DDK LTD.
    Inventors: Shinya ISHIZUKA, Akio YAMADA, Kazuyuki OZAI, Hiromichi KATO
  • Patent number: 7364471
    Abstract: A card connector into and from which at least one card is inserted and removed includes a plurality of contacts each having a contact portion adapted to contact the card, and a housing arranging and holding the contacts and having a fitting opening into which the card is inserted. The housing is provided with a terminal at one end in the width direction of the housing for achieving continuity between the card and a substrate and precluding the card from being erroneously inserted with its rear end or upside down, and the housing is further provided with a notch at a predetermined position for permitting part of the terminal to extend into the fitting opening. The card connector achieves its miniaturization and is able to prevent troubles caused by the electro-static discharge and an erroneous insertion of a card into the card connector.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: April 29, 2008
    Assignee: DDK, Ltd.
    Inventors: Hirokazu Takahashi, Hitoshi Kikuchi, Hiromichi Kato, Kazunori Takei
  • Publication number: 20070197068
    Abstract: A card connector which is able to be connected to at least two cards, includes contacts corresponding to the number of the cards, a tray in which at least two cards can be mounted, and a housing having a fitting opening for receiving the tray therein and for arranging and holding the contacts. Also, a card connector which is able to be connected to four cards, includes four kinds of contacts, a tray having card mounting sections in which four cards can be mounted, and a housing having a fitting opening for receiving the tray therein and for arranging and holding the four kinds of contacts. With these constructions, miniaturization in height or reduced overall height of connector is possible with a simple construction.
    Type: Application
    Filed: December 18, 2006
    Publication date: August 23, 2007
    Applicant: DDK LTD.
    Inventors: Hitoshi Kikuchi, Hirokazu Takahashi, Kazunori Takei, Hiromichi Kato
  • Publication number: 20070066105
    Abstract: An electrical connector includes a plurality of contacts, a housing arranging and holding the contacts and having a fitting opening into which a memory card is inserted, and pivotally movable locking members provided at both longitudinal ends of the housing, respectively, for holding and removing the memory card. The housing includes a main body for arranging and holding the contacts, and mounting portions provided at both the longitudinal ends for pivotally movably mounting the locking members. The mounting portions are each provided on both sides in width direction with protruding pieces extending against the inserting direction of the memory card. The locking members each include an anchoring portion adapted to engage and embrace the protruding pieces under a condition the memory card has been inserted. The electrical connector can comply with customers' requirements against vibration and does not cause any failed connection with a memory card even upon vibration and impact.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 22, 2007
    Inventors: Hiromichi Kato, Hitoshi Kikuchi, Yasuyuki Koguchi, Takahito Haneishi
  • Patent number: D539226
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 27, 2007
    Assignee: DDK Ltd.
    Inventors: Akio Yamada, Isao Kojima, Yasuyuki Koguchi, Hiromichi Kato
  • Patent number: D539227
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 27, 2007
    Assignee: DDK Ltd.
    Inventors: Akio Yamada, Isao Kojima, Yasuyuki Koguchi, Hiromichi Kato
  • Patent number: D607409
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 5, 2010
    Assignee: DDK Ltd.
    Inventors: Hirokazu Takahashi, Kazuhiro Sato, Hiromichi Kato, Jinichi Mashiyama, Kazunori Takei, Yasuyuki Ohashi
  • Patent number: D607824
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 12, 2010
    Assignee: DDK Ltd.
    Inventors: Hirokazu Takahashi, Kazuhiro Sato, Hiromichi Kato, Jinichi Mashiyama, Kazunori Takei, Yasuyuki Ohashi
  • Patent number: D688210
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 20, 2013
    Assignee: DDK Ltd.
    Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yosinori Iwashita, Hiromichi Kato, Hidenori Ikushima, Kenji Nakagawa, Yasushi Kawabara, Kazuhiro Sato, Taishi Otokata