Patents by Inventor Tomoaki Kajii
Tomoaki Kajii 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: 7114992Abstract: An electrical connector reduces backlash of the retainer in a main locking state and increases the rigidity of the front plate of the retainer, while providing dimensional stability, and preventing warpage of the locking arms. The electrical connector comprises a front insertion retainer that is locked to the housing in a temporary locking position and in a main locking position. The retainer comprises a front plate having contact passage holes, and locking arms extending rearward from the upper and lower ends of the front plate. A strip extends in the direction of length and protrudes rearward from the center on the back surface of the front plate, and a recessed groove extends on the front surface of the front plate in a position corresponding to the strip. The housing has a recessed groove that mates with the strip when the retainer is in the main locking position.Type: GrantFiled: October 13, 2004Date of Patent: October 3, 2006Assignee: Tyco Electronics AMP K.K.Inventors: Tetsuya Sagawa, Yasumasa Aita, Tomoaki Kajii, Ryo Sawada
-
Patent number: 7112104Abstract: An electrical connector comprises a retainer that is inserted from the front surface of the connector housing and locked to the housing in a temporary locking position and in a main locking position, wherein the state of the retainer in the main locking position can easily be confirmed by visual inspection or by using an inspection probe. The retainer has main locking arms comprising main locking projections which prevent the retainer from being pushed in when the retainer is in the temporary locking position, and which prevent the retainer from being pulled out when the retainer is in the main locking position. The main locking projections are exposed through the housing when the retainer is in the main locking position. The housing has supporting parts that support the back surface of the main locking arms in the vicinity of the main locking projections when the retainer is in the main locking position.Type: GrantFiled: October 13, 2004Date of Patent: September 26, 2006Assignee: Tyco Electronics AMP K.KInventors: Tetsuya Sagawa, Yasumasa Aita, Tomoaki Kajii, Ryo Sawada
-
Patent number: 7014511Abstract: An electrical connector comprises an insulating housing having a plurality of contact accommodating cavities extending from a front side to a rear side of the housing. Each of the contact accomodating cavities has a first probe receiving opening formed adjacent thereto. A retainer that is moveable between a temporary locking position and a main locking position is attached to the front side of the housing. The contact accomodating cavities are accesible through the first probe receiving openings when the retainer is in the temporary locking position, and the contact accomodating cavities are accesible through second probe receiving openings formed in the retainer when the retainer is in the main locking position.Type: GrantFiled: September 29, 2004Date of Patent: March 21, 2006Assignee: Tyco Electronics AMP K.K.Inventors: Tetsuya Sagawa, Yasumasa Aita, Tomoaki Kajii, Ryo Sawada
-
Publication number: 20050124216Abstract: An electrical connector reduces backlash of the retainer in a main locking state and increases the rigidity of the front plate of the retainer, while providing dimensional stability, and preventing warpage of the locking arms. The electrical connector comprises a front insertion retainer that is locked to the housing in a temporary locking position and in a main locking position. The retainer comprises a front plate having contact passage holes, and locking arms extending rearward from the upper and lower ends of the front plate. A strip extends in the direction of length and protrudes rearward from the center on the back surface of the front plate, and a recessed groove extends on the front surface of the front plate in a position corresponding to the strip. The housing has a recessed groove that mates with the strip when the retainer is in the main locking position.Type: ApplicationFiled: October 13, 2004Publication date: June 9, 2005Inventors: Tetsuya Sagawa, Yasumasa Aita, Tomoaki Kajii, Ryo Sawada
-
Publication number: 20050112943Abstract: An electrical connector comprises a retainer that is inserted from the front surface of the connector housing and locked to the housing in a temporary locking position and in a main locking position, wherein the state of the retainer in the main locking position can easily be confirmed by visual inspection or by using an inspection probe. The retainer has main locking arms comprising main locking projections which prevent the retainer from being pushed in when the retainer is in the temporary locking position, and which prevent the retainer from being pulled out when the retainer is in the main locking position. The main locking projections are exposed through the housing when the retainer is in the main locking position. The housing has supporting parts that support the back surface of the main locking arms in the vicinity of the main locking projections when the retainer is in the main locking position.Type: ApplicationFiled: October 13, 2004Publication date: May 26, 2005Inventors: Tetsuya Sagawa, Yasumasa Aita, Tomoaki Kajii, Ryo Sawada
-
Publication number: 20050085126Abstract: An electrical connector comprises an insulating housing having a plurality of contact accommodating cavities extending from a front side to a rear side of the housing. Each of the contact accomodating cavities has a first probe receiving opening formed adjacent thereto. A retainer that is moveable between a temporary locking position and a main locking position is attached to the front side of the housing. The contact accomodating cavities are accesible through the first probe receiving openings when the retainer is in the temporary locking position, and the contact accomodating cavities are accesible through second probe receiving openings formed in the retainer when the retainer is in the main locking position.Type: ApplicationFiled: September 29, 2004Publication date: April 21, 2005Inventors: Tetsuya Sagawa, Yasumasa Aita, Tomoaki Kajii, Ryo Sawada
-
Patent number: 6828058Abstract: Insertion piece portions 25, each having a retaining portion 25a formed at a distal end thereof, is formed on that portion of a cover opening/closing portion 17 disposed near to a hinge portion 17. A cover body portion 11 has insertion hole portions 26 into which the insertion piece portions 25 can be fittingly inserted, respectively. The cover opening/closing portion 17 and the cover body portion 11 include slanting walls 22 and 16, respectively, which are opposed to each other, with the hinge portion 27 disposed therebetween, and the insertion piece portions 25 are formed on the slanting wall 22 of the cover opening/closing portion 17, and the insertion hole portions 26 are formed in the slanting wall 16 of the cover body portion 11. The pair of insertion piece portions 25 are provided, and the retaining portions 25a of the pair of insertion piece portions 25 project inwardly toward each other or outwardly away from each other.Type: GrantFiled: April 29, 2002Date of Patent: December 7, 2004Assignee: Yazaki CorporationInventors: Haruhito Ohtsuka, Norio Matsumura, Tomoaki Kajii, Hiroshi Nakadouzono, Yoshinori Atago
-
Publication number: 20020168566Abstract: Insertion piece portions 25, each having a retaining portion 25a formed at a distal end thereof, is formed on that portion of a cover opening/closing portion 17 disposed near to a hinge portion 17. A cover body portion 11 has insertion hole portions 26 into which the insertion piece portions 25 can be fittingly inserted, respectively. The cover opening/closing portion 17 and the cover body portion 11 include slanting walls 22 and 16, respectively, which are opposed to each other, with the hinge portion 27 disposed therebetween, and the insertion piece portions 25 are formed on the slanting wall 22 of the cover opening/closing portion 17, and the insertion hole portions 26 are formed in the slanting wall 16 of the cover body portion 11. The pair of insertion piece portions 25 are provided, and the retaining portions 25a of the pair of insertion piece portions 25 project inwardly toward each other or outwardly away from each other.Type: ApplicationFiled: April 29, 2002Publication date: November 14, 2002Applicant: YAZAKI CORPORATIONInventors: Haruhito Ohtsuka, Norio Matsumura, Tomoaki Kajii, Hiroshi Nakadouzono, Yoshinori Atago