Patents Assigned to DDK Ltd.
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Publication number: 20160204531Abstract: A printed wiring board (1) includes: a base substrate (3); a plurality of pads (15a, 17a) for electrical connection that are disposed at one surface side of the base substrate (3) and at a connection end portion (13) to be connected with another electronic component (50); wirings (9, 11) that are connected with the pads (15a, 17a); and engageable parts (28, 29) that are formed at side edge parts of the connection end portion (13) and are to be engaged with engagement parts (58) of the other electronic component (50) in the direction of disconnection. The flexible printed wiring board (1) further includes: reinforcement layers (31, 32) that are disposed at the one surface side of the base substrate (3) and at a frontward side with respect to the engageable parts (28, 29) when viewed in the direction of connection with the other electronic component and that are formed integrally with the pads (15a); and insulating layers (34, 35) that cover the reinforcement layers (31, 32).Type: ApplicationFiled: September 4, 2014Publication date: July 14, 2016Applicants: FUJIKURA LTD., DDK LTD.Inventors: Yuki ISHIDA, Masayuki SUZUKI, Yuki NAKANO, Harunori URAI, Norifumi NAGAE
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Publication number: 20160204532Abstract: A printed wiring board (1) includes: a base substrate (3); a plurality of pads (15a, 17a) for electrical connection that are disposed at one surface side of the base substrate (3) and at a connection end portion (13) to be connected with another electronic component (50); wirings (9, 11) that are connected with the pads (15a, 17a); and engageable parts (28, 29) that are formed at side edge parts of the connection end portion (13) and are to be engaged with engagement parts (58) of the other electronic component (50) in the direction of disconnection. The wirings (9, 11) are disposed at the other surface side of the base substrate (3). The flexible printed wiring board (1) further includes reinforcement layers (31, 32) that are disposed at the one surface side of the base substrate (3) and at a frontward side with respect to the engageable parts (28, 29) when viewed in the direction of connection with the other electronic component, and that are formed integrally with the pads (15a).Type: ApplicationFiled: September 4, 2014Publication date: July 14, 2016Applicants: FUJIKURA LTD., DDK LTD.Inventors: Yuki ISHIDA, Masayuki SUZUKI, Yuki NAKANO, Harunori URAI, Norifumi NAGAE
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Publication number: 20160198572Abstract: A printed wiring board (1) includes: a base substrate (3); a plurality of pads (15a, 17a) for electrical connection that are disposed at one surface side of the base substrate (3) and at a connection end portion (13) to be connected with another electronic component (50); wirings (9, 11) that are connected with the pads (15a, 17a); and engageable parts (28, 29) that are formed at side edge parts of the connection end portion (13) and are to be engaged with engagement parts (58) of the other electronic component (50) in the direction of disconnection. The flexible printed wiring board (1) further includes reinforcement layers (31, 32) that are disposed at the other surface side of the base substrate (3) and at a frontward side with respect to the engageable parts (28, 29) when viewed in the direction of connection with the other electronic component, and that are formed integrally with the wirings (9).Type: ApplicationFiled: September 4, 2014Publication date: July 7, 2016Applicants: FUJIKURA LTD., DDK Ltd.Inventors: Yuki ISHIDA, Masayuki SUZUKI, Yuki NAKANO, Harunori URAI, Norifumi NAGAE
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Publication number: 20160064846Abstract: An electronic component includes at least a contact member having, on a surface of a contact portion adapted to come into contact with another contact member, at least an undercoat plating layer and a main plating layer formed on the undercoat plating layer. A coating containing a fluorine-based oil is provided on the main plating layer, and the coating has a dry coating weight per unit area on the main plating layer of greater than or equal to 0.011 mg/cm2.Type: ApplicationFiled: April 4, 2014Publication date: March 3, 2016Applicant: DDK LTD.Inventor: Yoshihiro TADOKORO
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Patent number: 9276342Abstract: A connector includes a housing and a plurality of signal contacts and a plurality of ground contacts. Each contact includes a contact portion that contacts an object, a connection portion mounted on a substrate, and a fixing portion located between the contact portion and the connection portion in the vicinity of the connection portion. The signal contact and the ground contact are aligned and held in the housing, and the fixing portion is fixed to the housing. When the plurality of signal contacts are arranged between the ground contacts, at least two of the ground contacts are coupled and connected integrally or by a separate component, the coupling and connection being made in a section of each ground contact between one end (leading end) of the contact portion and the fixing portion, so that high-frequency transmission characteristics are improved.Type: GrantFiled: April 26, 2013Date of Patent: March 1, 2016Assignee: DDK Ltd.Inventors: Tadashi Masubuchi, Takuya Higeta, Masayoshi Nemoto
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Publication number: 20160043494Abstract: A contact configured to be retained and arranged in an insulating object includes a contact portion that is configured to come into contact with a counterpart object, a connecting portion connectable to an object to be connected, a main body portion having two side walls and a joining wall that joins the side walls, the main body portion having a substantially U-shaped cross section, first and second contact pieces protruding from the two side walls and extending along a direction of mating with a counterpart object, and first and second contact portions disposed at free end parts of the first and second contact pieces, respectively. The first and second contact portions each has a curved shape and configured to come into contact with the same surface of the counterpart object. The first and second contact portions are spaced apart along the direction of mating, the first and second contact portions being configured to come into roll-face contact with the counterpart object.Type: ApplicationFiled: July 16, 2015Publication date: February 11, 2016Applicant: DDK LTD.Inventors: Jinichi MASHIYAMA, Takanobu YOSHIMI, Yukio SAITO, Kei ISHIKAWA
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Patent number: 9172190Abstract: A connector to be detachably fitted with a connecting object such as a flexible printed circuit board or flexible flat cable, includes a plurality of contacts each having a contact portion adapted to contact the connecting object, a housing arranging and holding therein the contacts and having a fitting opening into which the connecting object is inserted, and a pivoting member rotatably or pivotally mounted on the housing. According to the invention, an auxiliary member having an engaging unit for engaging the pivoting member is mounted on the pivoting member at its predetermined position. With the aid of the auxiliary member, the pivoting member can be easily rotated or pivotally moved.Type: GrantFiled: January 27, 2014Date of Patent: October 27, 2015Assignee: DDK LTD.Inventors: Takanobu Yoshimi, Masato Hida, Takeki Fukazawa, Kouta Ogura
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Patent number: 8840411Abstract: It is the object of the present invention to provide a connector 10 which provides a stable connection that is resistant to the rocking motion of a connecting object in insertion direction, longitudinal pitch direction, or the direction of the thickness of the connector, while maintaining the low-profile level so as to prevent the deflection of the connecting object even when the connector is mounted on a flexible board e.g., an FPC.Type: GrantFiled: January 19, 2012Date of Patent: September 23, 2014Assignee: DDK Ltd.Inventor: Yuki Nakano
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Publication number: 20140141645Abstract: A connector to be detachably fitted with a connecting object such as a flexible printed circuit board or flexible flat cable, includes a plurality of contacts each having a contact portion adapted to contact the connecting object, a housing arranging and holding therein the contacts and having a fitting opening into which the connecting object is inserted, and a pivoting member rotatably or pivotally mounted on the housing. According to the invention, an auxiliary member having an engaging unit for engaging the pivoting member is mounted on the pivoting member at its predetermined position. With the aid of the auxiliary member, the pivoting member can be easily rotated or pivotally moved.Type: ApplicationFiled: January 27, 2014Publication date: May 22, 2014Applicant: DDK LTD.Inventors: Takanobu Yoshimi, Masato Hida, Takeki Fukazawa, Kouta Ogura
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Patent number: 8672697Abstract: A connector to be detachably fitted with a connecting object such as a flexible printed circuit board or flexible flat cable, includes a plurality of contacts each having a contact portion adapted to contact the connecting object, a housing arranging and holding therein the contacts and having a fitting opening into which the connecting object is inserted, and a pivoting member rotatably or pivotally mounted on the housing. According to the invention, an auxiliary member having an engaging unit for engaging the pivoting member is mounted on the pivoting member at its predetermined position. With the aid of the auxiliary member, the pivoting member can be easily rotated or pivotally moved.Type: GrantFiled: September 14, 2011Date of Patent: March 18, 2014Assignee: DDK Ltd.Inventors: Takanobu Yoshimi, Masato Hida, Takeki Fukazawa, Kouta Ogura
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Patent number: 8556640Abstract: 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: GrantFiled: July 5, 2012Date of Patent: October 15, 2013Assignee: DDK Ltd.Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yoshinori Iwashita, Hiromichi Kato, Hidenori Ikushima
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Patent number: 8485832Abstract: Upon plug and receptacle connectors of an electrical connector being fitted with each other, positioning recesses of a block of the plug connector engage positioning protrusions of a housing of the receptacle connector to achieve positioning of the two connectors in their width directions. Inclined portions of receptacle contacts of the receptacle connector are commensurate with inclined portions of inserting holes of the housing so that a backup function of the housing for the receptacle contacts is adjusted to obtain a stable connection between the plug and receptacle connectors. First chamfered portions of the receptacle contacts engage recesses of the plug contacts to generate tactile clicks and to achieve the positioning and contacting between the plug and receptacle contacts. The plug contacts are embraced between contact portions and elastic portions of the receptacle contacts to obtain a stable connection between the both contacts.Type: GrantFiled: May 11, 2012Date of Patent: July 16, 2013Assignee: DDK Ltd.Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yoshinori Iwashita
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Patent number: 8373091Abstract: A microcontact according to the invention is less than 10 mm in length and composed of a conductive basis material, a base surface treatment layer formed thereon, and an upper surface treatment layer, and includes a contact portion, a terminal portion, and an intermediate portion formed over its entire circumference with exposed oxide surfaces of the base surface treatment layer. The exposed oxide surfaces are formed by irradiating the front and rear surfaces of the contact with laser beams at respective predetermined inclined angles to remove the upper surface treatment layer and simultaneously to oxidize the narrow base surface treatment layer exposed by the removal of the upper surface treatment layer. In this manner, the exposed oxide surfaces can be formed with a high accuracy in a simple manner for stopping solder rise at a predetermined position when the terminal portion of the microcontact is jointed to a substrate by soldering.Type: GrantFiled: August 23, 2006Date of Patent: February 12, 2013Assignee: DDK, Ltd.Inventors: Hiroyuki Moriuchi, Hideo Omori, Haruki Shimizu
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Publication number: 20130012074Abstract: 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: ApplicationFiled: July 5, 2012Publication date: January 10, 2013Applicant: DDK LTD.Inventors: Jinichi MASHIYAMA, Toshihiko HIRAI, Yoshinori IWASHITA, Hiromichi KATO, Hidenori IKUSHIMA
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Publication number: 20120289096Abstract: Upon plug and receptacle connectors of an electrical connector being fitted with each other, positioning recesses of a block of the plug connector engage positioning protrusions of a housing of the receptacle connector to achieve positioning of the two connectors in their width directions. Inclined portions of receptacle contacts of the receptacle connector are commensurate with inclined portions of inserting holes of the housing so that a backup function of the housing for the receptacle contacts is adjusted to obtain a stable connection between the plug and receptacle connectors. First chamfered portions of the receptacle contacts engage recesses of the plug contacts to generate tactile clicks and to achieve the positioning and contacting between the plug and receptacle contacts. The plug contacts are embraced between contact portions and elastic portions of the receptacle contacts to obtain a stable connection between the both contacts.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: DDK LTD.Inventors: Jinichi MASHIYAMA, Toshihiko HIRAI, Yoshinori IWASHITA
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Publication number: 20120231646Abstract: It is the object of the present invention to provide a connector 10 which provides a stable connection that is resistant to the rocking motion of a connecting object in insertion direction, longitudinal pitch direction, or the direction of the thickness of the connector, while maintaining the low-profile level so as to prevent the deflection of the connecting object even when the connector is mounted on a flexible board e.g., an FPC.Type: ApplicationFiled: January 19, 2012Publication date: September 13, 2012Applicant: DDK LTD.Inventor: Yuki Nakano
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Patent number: 8092263Abstract: An object of the invention is to provide a process for providing a connector, which prevents component atoms constituting a material and a substrate layer from diffusing into a tin-containing material layer and suppressing an occurrence of external force-type whiskers upon the application of external force to a surface of the tin-containing material layer, and a connector produced by the same process. In a production process of a connector comprising a step of providing a substrate layer on a surface of the material to surface treat the material and a step of providing a tin-containing material layer on an upside of the substrate layer to surface treat the substrate layer, the object can be achieved by further comprising a step of providing a barrier intermediate layer before the provision of the tin-containing material layer.Type: GrantFiled: July 7, 2008Date of Patent: January 10, 2012Assignee: DDK Ltd.Inventors: Hiroyuki Moriuchi, Yoshihiro Tadokoro, Eiichi Mikogai, Yoshiichi Nakano
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Patent number: 7901218Abstract: 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: GrantFiled: February 26, 2010Date of Patent: March 8, 2011Assignee: DDK Ltd.Inventors: Kazuhiro Sato, Hiromichi Kato, Hirokazu Takahashi
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Patent number: D688210Type: GrantFiled: September 18, 2012Date of Patent: August 20, 2013Assignee: DDK Ltd.Inventors: Jinichi Mashiyama, Toshihiko Hirai, Yosinori Iwashita, Hiromichi Kato, Hidenori Ikushima, Kenji Nakagawa, Yasushi Kawabara, Kazuhiro Sato, Taishi Otokata
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Patent number: D726113Type: GrantFiled: March 15, 2013Date of Patent: April 7, 2015Assignee: DDK Ltd.Inventors: Nobuyuki Senba, Hideki Shibata