Patents Assigned to DDK Ltd.
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Publication number: 20080299840Abstract: An L-shaped contact includes a contact portion adapted to contact a mating object, a fixed portion to be fixed to a housing, and a connection portion to be connected to a connecting object, and a hole formed in a bent portion between the fixed portion and the connection portion. When the contact is fixed to the housing, the contact is inserted into the housing by pushing an end face of the hole. The L-shaped contact ensures a stable contacting surface area for being pushed by a jig and enables to bear a heavy-electric current to pass therethrough without adversely affecting miniaturization of a connector and extremely narrow pitches of the conductors.Type: ApplicationFiled: May 23, 2008Publication date: December 4, 2008Applicant: DDK LTD.Inventors: Ryoji KITAMUKI, Yoshinori YABE
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Patent number: 7452241Abstract: A card connector includes contacts adapted to contact contacts of two memory cards, a housing having inserting openings for inserting the memory cards and arranging and holding the contacts therein, and a shell covering the housing. The housing includes two side walls, a rear wall, and a lower wall contiguous with these side and rear walls to form the inserting openings for the memory cards by these two side walls, rear wall and lower wall, and is provided with a pivotally movable plate to form, by its pivotal movement, the one inserting opening for inserting either of the cards and simultaneously to prevent the other card from being inserted. The card connector enables stable connection by merely inserting two different cards having equal lengths in the inserting direction and different widths and thicknesses into the connector.Type: GrantFiled: July 9, 2007Date of Patent: November 18, 2008Assignee: DDK Ltd.Inventors: Hitoshi Kikuchi, Hirokazu Takahashi, Kazunori Takei
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Patent number: 7448893Abstract: A connector includes a required number of contacts of three kinds and a housing having inserting holes for these contacts. One set of three contacts or contacts A, B and C are inserted into the same inserting hole of the housing. The contact A is inserted into the inserting hole from the side of a fitting opening of the housing, while the contact B and the contact C are inserted in parallel with each other into the inserting hole from the opposite side of the fitting opening such that the contact A and the contact C are aligned with each other and the contact A and the contact B are arranged to be staggered relative to each other, thereby bringing a flexible printed circuit board into contact with the contacts A and contacts B upon insertion of the circuit board. With this construction, narrow pitches less than 0.25 mm can be obtained, and high density can also be achieved.Type: GrantFiled: May 22, 2007Date of Patent: November 11, 2008Assignee: DDK Ltd.Inventor: Masayuki Suzuki
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Patent number: 7435122Abstract: Contacts each include a first piece having a contact portion extensible into a fitting opening of a housing to contact a connecting object and a pressure receiving portion urged by a pivoting member, a second piece having a fulcrum portion and a connection portion connected to a substrate, a connecting portion connecting the first piece and the fulcrum portion, and a second pressure receiving portion substantially L-shaped extending from the connecting portion. The contact portion, connecting portion, fulcrum portion and connection portion are arranged substantially in a crank. The pivoting member is pivotally movable on the housing so that urging portions are pivotally movable between the pressure receiving portions and the second pressure receiving portions. Even there is an operating space only on the fitting opening side, the pivoting member being operatable, and a ZIF construction and upper and lower contact portions are possible.Type: GrantFiled: September 21, 2005Date of Patent: October 14, 2008Assignee: DDK Ltd.Inventors: Masayuki Suzuki, Yasuyuki Koguchi
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Patent number: 7429196Abstract: A card connector into and from which a plurality of cards are inserted and removed, includes a required number of contacts, and a housing arranging and holding the contacts and having one or plural fitting openings each into which the card is inserted. The contacts each includes contact portions to contact at least two cards so that the same contact can be brought into contact with at least two cards. The card connector has a high degree of freedom for design of substrate and connector without complicating the arrangement of connection portions of contacts and is easy to assemble and easy to mount connection portions onto a substrate by a customer or consumer.Type: GrantFiled: November 1, 2005Date of Patent: September 30, 2008Assignee: DDK Ltd.Inventors: Kazunori Takei, Shoichi Hamano, Hitoshi Kikuchi, Hirokazu Takahashi
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Patent number: 7427206Abstract: A card connector into and from which a memory card is detachably inserted and removed, includes contacts each adapted to contact a connection portion of the memory card, and a housing for arranging and holding the contacts and having an inserting opening for inserting the memory card. The housing includes two side walls, a rear wall, and a lower wall contiguous to these side and rear walls to form the inserting opening for the memory card by these walls. A shell is arranged on the side of the housing opposite from the lower wall, and an elastically deformable tray is arranged on the lower wall so as to be slidable with the aid of a tray restraining plate. The card connector is miniaturized and lighter, more compact and simple in construction and is easy to remove a memory card.Type: GrantFiled: April 18, 2007Date of Patent: September 23, 2008Assignee: DDK Ltd.Inventors: Kazunori Takei, Hirokazu Takahashi, Hitoshi Kikuchi
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Publication number: 20080214031Abstract: 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: ApplicationFiled: February 26, 2008Publication date: September 4, 2008Applicant: DDK LTD.Inventors: Shinya ISHIZUKA, Akio YAMADA, Kazuyuki OZAI, Hiromichi KATO
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Publication number: 20080214050Abstract: 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: ApplicationFiled: January 11, 2008Publication date: September 4, 2008Applicant: DDK LTD.Inventors: Shinya ISHIZUKA, Akio Yamada, Kazuyuki Ozai, Hiromichi Kato
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Patent number: 7393239Abstract: A connector includes contacts each having a contact portion, an elastic portion and a fulcrum portion between the contact portion and a connection portion, and a pressure receiving portion; a housing fixing the contacts; and a slider having urging portions pivotally moved between the connection and pressure receiving portions of the contacts to urging the contact portions against the circuit board, thereby achieving reliable connection and miniaturization of the connector. In an aspect, the housing is formed on the side of a board insertion opening with a recessed portion for conducting the board. In another aspect, the contact includes upper and lower contact portions one above the other arranged alternately staggered so as to be connected to a circuit board having contact portions alternately staggered, so that no defective connection occurs, even if the circuit board is inserted erroneously upside down.Type: GrantFiled: November 7, 2006Date of Patent: July 1, 2008Assignee: DDK Ltd.Inventors: Masayuki Suzuki, Jun-ichi Watanabe
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Patent number: 7374432Abstract: A connector includes contacts and an insulator. Each contact includes a contact portion, a first fixed portion, an elastic portion substantially in the form of a crank, a second fixed portion and a connection portion. The insulator includes a fixation block to which the second fixed portions are fixed, and a movable housing to which the first fixed portions are fixed. The movable housing is fixed only to the contacts and held by the elastic portions in a floating condition away from the bottom surface of the fixation block. The fixation block has a wall for preventing short circuit when the connector is being mounted on a substrate. A floating amount of more than 0.7 mm can be achieved with a simple construction without causing short circuit with a substrate when the connector is being fitted with a mating connector and without causing any failed connection.Type: GrantFiled: July 5, 2006Date of Patent: May 20, 2008Assignee: DDK Ltd.Inventors: Yasuyuki Koguchi, Isao Kojima
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Patent number: 7371094Abstract: An electrical connector includes contacts each having a junction to be electrically connected to another substrate and a pair of contact portions bifurcated and extending from the junction to form a bearing space therebetween, and an array plate for forming thereon a contact group by aligning a plurality of the contacts in a particular direction, and a cam shaft positioned and rotatably held within the bearing spaces of the contacts aligned with one another on the array plate to form a contact group and having a major axis portion and a minor axis portion different in size such that former is larger and the latter is smaller than the width of the bearing spaces so that the cam shaft is axially insertable into and retractable from the bearing spaces of the contacts. With this construction, the contacts can be detachably fitted in a connector so that failed contacts can be easily replaced with new contacts.Type: GrantFiled: December 22, 2006Date of Patent: May 13, 2008Assignees: DDK Ltd., Hitachi Ltd.Inventors: Daisuke Tokuhashi, Hisatomo Mima, Toshinori Ameya
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Patent number: 7364471Abstract: 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: GrantFiled: March 9, 2006Date of Patent: April 29, 2008Assignee: DDK, Ltd.Inventors: Hirokazu Takahashi, Hitoshi Kikuchi, Hiromichi Kato, Kazunori Takei
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Patent number: 7357642Abstract: A card connector into and from which a card is inserted and removed, includes a plurality of contacts each having a contact portion to contact the card, a housing arranging and holding the contacts and having a fitting opening for inserting the card, a guide frame formed integrally with or separately from the housing and having guide portions for guiding the card to the contacts, a shell enclosing that part of the guide frame in which removing device is installed for removing the card from the card connector, and terminals arranged on the side of the leading end of the fitting opening for preventing troubles caused by static electricity. One of the terminals is provided with an extending piece extending onto the side opposite from the connection portion to be connected to a substrate. The shell is provided with an extending portion adapted to contact the extending piece. The card connector thus constructed is free from secondary discharge.Type: GrantFiled: February 15, 2007Date of Patent: April 15, 2008Assignee: DDK, LtdInventors: Tadashi Masubuchi, Hirokazu Takahashi
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Patent number: 7354299Abstract: An electrical connector includes a plug connector and a receptacle connector detachably fitted with each other. The plug connector comprises a plurality of coaxial cables, a flexible printed circuit board and a ground bar. Each of the coaxial cable has a center conductor, an insulator covering the center conductor, a braid as an external conductor covering the insulator, and a sheath covering the braid. The flexible printed circuit board has lands each connected to the center conductor of the coaxial cable and land portions to which the ground bar is connected. The grand bar has a main portion adapted to contact the braids of the coaxial cables, and fixed portions each positioned contiguously with the main portion and connected to the land portion. The electrical connector achieves the low height geometry of the plug connector and hence that of the receptacle connector and precludes any failed connection between the ground bar and the coaxial cables.Type: GrantFiled: December 8, 2004Date of Patent: April 8, 2008Assignee: DDK LtdInventors: Akio Yamada, Kato Hiromichi
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Patent number: 7341470Abstract: A connector includes a plurality of contacts having at least one contact portion adapted to contact a connecting object, a housing arranging and holding the contacts and having a fitting opening into which the connecting object is inserted, and a member for bringing the connecting object into contact with the contact portions of the contacts. The contacts are arranged orthogonally to the inserting direction of the fitting opening of the housing so that connection portions of the contacts extend onto either or both sides of the housing in its width direction, and after the connecting object has been inserted into the fitting opening, the member is inserted or pivotally moved to bring the connecting object into contact with the contact portions of the contacts. This connector completely complies with customer's requirements and overcomes the problems of mounting space on a substrate, operationality and reduced overall height.Type: GrantFiled: June 14, 2006Date of Patent: March 11, 2008Assignee: DDK Ltd.Inventors: Masayuki Suzuki, Yuki Nakano
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Publication number: 20070298628Abstract: A connector includes a required number of contacts of three kinds and a housing having inserting holes for these contacts. One set of three contacts or contacts A, B and C are inserted into the same inserting hole of the housing. The contact A is inserted into the inserting hole from the side of a fitting opening of the housing, while the contact B and the contact C are inserted in parallel with each other into the inserting hole from the opposite side of the fitting opening such that the contact A and the contact C are aligned with each other and the contact A and the contact B are arranged to be staggered relative to each other, thereby bringing a flexible printed circuit board into contact with the contacts A and contacts B upon insertion of the circuit board. With this construction, narrow pitches less than 0.25 mm can be obtained, and high density can also be achieved.Type: ApplicationFiled: May 22, 2007Publication date: December 27, 2007Applicant: DDK LTD.Inventor: Masayuki Suzuki
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Patent number: D562774Type: GrantFiled: March 13, 2007Date of Patent: February 26, 2008Assignee: DDK Ltd.Inventors: Isao Kojima, Kazuhiro Sato, Hirokazu Takahashi, Akio Yamada, Hitoshi Kikuchi
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Patent number: D563876Type: GrantFiled: May 15, 2007Date of Patent: March 11, 2008Assignee: DDK Ltd.Inventors: Tadashi Masubuchi, Yasuyuki Koguchi, Takuya Higeta
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Patent number: D563889Type: GrantFiled: May 24, 2007Date of Patent: March 11, 2008Assignee: DDK Ltd.Inventors: Takuya Higeta, Tadashi Masubuchi, Yasuyuki Koguchi
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Patent number: D576103Type: GrantFiled: March 13, 2007Date of Patent: September 2, 2008Assignee: DDK Ltd.Inventors: Isao Kojima, Kazuhiro Sato, Hirokazu Takahashi, Akio Yamada, Hitoshi Kikuchi