Patents Assigned to GC Corporation
  • NOZZLE TIP
    Publication number: 20150041571
    Abstract: An nozzle tip capable of securely and unremovably locking after temporary fixing at a tip-end of a discharging portion of a mixing tip is provided. The nozzle tip includes an insertion portion having a cylindrical portion for temporary fixing, a taper portion, and a cylindrical portion for engaging. The cylindrical portion for temporary fixing has the same outer diameter as an inner diameter of a protrusion portion of the mixing tip. The taper portion is continuously provided on the cylindrical portion for temporary fixing and has a step portion. The cylindrical portion for engaging is continuously provided on the step portion of the taper portion and has an outer diameter which is equal to the diameter of the taper portion at the step portion and a length longer than a length of the protrusion portion of the mixing tip.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 12, 2015
    Applicant: GC CORPORATION
    Inventors: Takumi SUZUKI, Tatsunosuke Miyano
  • Implant fixture storage case and implant fixture storage case set
    Patent number: 8950577
    Abstract: Provided is an implant fixture storage case capable to prevent mistake in combination. The implant fixture storage case comprises an implant fixture holding member (20) for holding an implant fixture and which has a length based on the implant fixture to be held, and a storage main body (10) on which a value related to the length of the implant fixture is displayed, and which holds the implant fixture holding member thereinside and has at least one part being transparent, and a position display means (12) provided to the storage main body based on a position of an end portion of the implant fixture holding member, wherein the end portion of the implant fixture holding member and the position display means are viewable at the same time.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: February 10, 2015
    Assignee: GC Corporation
    Inventors: Yoshihiro Sakaguchi, Kinya Nihei, Seiko Muraoka
  • IMAGE ACQUISITION DEVICE FOR DENTAL HANDPIECE, IMAGING APPARATUSF OR DENTAL HANDPIECE, DENTAL HANDPIECE AND DENTAL HANDPIECE SYSTEM
    Publication number: 20150037751
    Abstract: Provided is an image acquisition device for dental handpiece capable of acquiring a clear image even though cooling water is supplied. An image acquisition device (11) detachable to a dental handpiece body (1), the device including a light inlet part having a light acquisition port capable of acquiring light, a holding member (14, 15) holding the light inlet part to the dental handpiece body, wherein the light acquisition port can be held to the dental handpiece body by means of the holding member in such a manner that it can be shifted to a side which is away from an instrument than a plane of an instrument-mounting surface of a head (2) of the dental handpiece body and in a region outside of an outer peripheral surface of the head.
    Type: Application
    Filed: February 19, 2013
    Publication date: February 5, 2015
    Applicant: GC CORPORATION
    Inventor: Osamu Motoyama
  • FRACTURE TREATMENT DEVICE
    Publication number: 20140371748
    Abstract: Provided is a fracture treatment device enabling efficient bone regeneration. The fracture treatment device (10) for connecting a bone on one side of a fracture site and a bone on the other side of the fracture site, the device including a fixation member (11) having a stick shape, a tissue regeneration structure (15) disposed in a manner to cover at least a part of the fixation member, wherein the tissue regeneration structure includes a support body made of a bioabsorbable material and cells retained in the support body, which cells regenerate bone.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 18, 2014
    Applicant: GC CORPORATION
    Inventors: Katsuyuki YAMANAKA, Yuuhiro SAKAI, Katsushi YAMAMOTO, Yusuke SHIGEMITSU, Tadashi KANEKO
  • FLUORESCENCE IMPARTING AGENT FOR CERAMICS
    Publication number: 20140367613
    Abstract: Provided is a fluorescence imparting agent for ceramics that does not require the use of an acidic solution during production. The fluorescence imparting agent for ceramics is a water solution containing 5 to 90% by weight of glycerin and 0.01 to 10% by weight of one or more bismuth compound selected from bismuth bromide (BiBr3), bismuth bromate (Bi(BrO3)3), bismuth chloride (BiCl3), bismuth chlorate (Bi(ClO3)3), bismuth fluoride (BiF3), bismuth pentafluoride (BiF5), bismuth hydroxide (Bi(OH)3), bismuth iodide (BiI3), bismuth iodate (Bi(IO3)3), bismuth nitrate (Bi(NO3)3), bismuth subnitrate (Bi5O(OH)9(NO3)4), bismuth phosphate (BiPO4), and bismuth sulfate (Bi2(SO4)3).
    Type: Application
    Filed: December 20, 2012
    Publication date: December 18, 2014
    Applicant: GC CORPORATION
    Inventors: Go Mashio, Syuji Kariya
  • CONTAINER COVER AND DRIPPING CONTAINER
    Publication number: 20140353337
    Abstract: Provided is a dripping container capable of inhibiting variation in dripping. The dripping container (1) capable of containing and dripping a liquid medicine, the dripping container includes a container (10) provided with a main body (11) to contain the liquid medicine formed in a tubular shape including a bottom on one side thereof and an opening portion (13a) with which the dripping container capable of dripping the liquid medicine, and a container cover (20) to cover the main body of the container, wherein the container cover includes an outer peripheral wall portion (21) to cover an outer peripheral portion of the container formed in a tubular shape and a bottom portion (22) to cover a bottom of the container, and a surface of the outer peripheral wall portion facing to the container is a surface having a close contact with the container.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 4, 2014
    Applicant: GC CORPORATION
    Inventors: Takumi SUZUKI, Shinichi KOJIMA
  • IMPLANT FIXTURE STORAGE CASE AND IMPLANT FIXTURE STORAGE CASE SET
    Publication number: 20140311932
    Abstract: Provided is an implant fixture storage case capable to prevent mistake in combination. The implant fixture storage case comprises an implant fixture holding member (20) for holding an implant fixture and which has a length based on the implant fixture to be held, and a storage main body (10) on which a value related to the length of the implant fixture is displayed, and which holds the implant fixture holding member thereinside and has at least one part being transparent, and a position display means (12) provided to the storage main body based on a position of an end portion of the implant fixture holding member, wherein the end portion of the implant fixture holding member and the position display means are viewable at the same time.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 23, 2014
    Applicant: GC CORPORATION
    Inventors: Yoshihiro SAKAGUCHI, Kinya NIHEI, Seiko MURAOKA
  • BLISTER PACK
    Publication number: 20140291190
    Abstract: [Problems to be Solved] To provide a blister pack which can be easily torn off and peeled by automatically adjusting a position of tearing off and peeling even if a seal member becomes diagonally with respect to a longitudinal direction of a main body portion (storage recess portion) of the blister pack. [Solution] The blister pack includes a main body portion 1 and seal member 2. The main body portion 1 includes a rectangular storage recess portion (1a) recessed at a center thereof and a plane portion for seal member adhesion (1b) provided around the storage recess portion (1a). The plane portion for seal member adhesion (1) is formed in a direction parallel with the longitudinal direction of the storage recess portion (1a), and on the right and left sides. The seal member (2) has a gripping part (2a) protruding at least one end in the longitudinal direction of the main body portion (1).
    Type: Application
    Filed: March 19, 2014
    Publication date: October 2, 2014
    Applicant: GC CORPORATION
    Inventor: Kinya NIHEI
  • SCANNING INSTRUMENT
    Publication number: 20140297232
    Abstract: Provided is a scanning instrument that can obtain information about position and inclination of a central axis of an implant fixture used for an implant bridge with a high accuracy. A scanning instrument (10, 110) to be attached to an analog (20) that is embedded in a model, the scanning instrument comprising a main body (11, 111) having a cylindrical shape, a fixation member (12) to attach the main body to the analog, and a reference point (13) to obtain information about position and inclination of a central axis of the analog by using a pattern projection method.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 2, 2014
    Applicant: GC CORPORATION
    Inventor: Ai MIYOSHI
  • DENTAL GYPSUM POWDER
    Publication number: 20140296369
    Abstract: Provided is a dental gypsum powder having flowability, setting time, and strength of a set material that are suitable for producing a dental model. The dental gypsum powder contains 100 parts by weight of gypsum hemihydrate, 2 to 4 parts by weight of gypsum dihydrate, from 0.5 to 3 parts by weight of potassium sulfate, from 0.05 to 0.8 parts by weight of a polycarboxylate water reducing agent, and not contain more than 0.3 parts by weight of other additives. It is preferred that the amount of the polycarboxylate water reducing agent is from 0.15 to 0.3 parts by weight per 100 parts by weight of gypsum hemihydrate, and the amount of the potassium sulfate is from 25% by weight to the same amount of the amount of the gypsum dihydrate.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: GC Corporation
    Inventors: Daizaburo MORI, Emiko Fukushima, Haruhiko Horiuchi
  • Zirconia-based composite ceramic sintered compact and method for producing the same
    Patent number: 8845954
    Abstract: To provide a zirconia-based composite ceramic sintered compact capable of being colored to white appropriate for a dental prosthesis while maintaining its mechanical and physical properties, and also provide a method for producing the same. The method for producing the zirconia-based composite ceramic sintered compact includes semi-sintering a zirconia-alumina composite ceramic containing an alumina particle and a zirconia particle comprising of tetragonal zirconia containing ceria of 8 to 12 mol %, forming the composite ceramic; dipping the formed composite ceramic in a neodymium ion solution or complex solution; drying the dipped composite ceramic; and finally sintering it.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: September 30, 2014
    Assignee: GC Corporation
    Inventors: Shuji Kariya, Akio Takahashi, Go Mashio
  • DENTAL MIXER
    Publication number: 20140246457
    Abstract: To provide a dental mixer capable of easily, certainly locking a mixing tip to a syringe body, easily removing the mixing tip, and thereby having easy handling property. The dental mixer includes a syringe body 1 and a sleeve 3. The mixing tip 2 includes a housing 2a, a paste guiding member 2b and a plate spring-shaped locking members 2c and 2c. The plate spring-shaped locking members 2c and 2c have pawl portions 2ca and 2ca on the tip-end side thereof, and the pawl portions 2ca and 2ca are locked, by elasticity, with locking grooves 1c and 1c between the syringes 1a and 1a. The sleeve 3 has a shape to cover at least the pawl portions 2ca and 2ca when sliding toward the outlet side of the housing 2a, and thereby to prevent the locking of the pawl portions 2ca and 2ca by elasticity from canceling.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 4, 2014
    Applicant: GC CORPORATION
    Inventors: Tatsunosuke MIYANO, Kazuma NOGUCHI
  • Impression tray for lower jaw
    Patent number: 8784100
    Abstract: The invention provides a plastic impression tray for a lower jaw having an outer wall, an inner wall and a bottom portion and forming a U-shaped flat surface. A rim with a particular height is provided along each of upper ends of the outer wall and the inner wall, through holes with particular widths are provided with a particular relationship between the distance between the adjacent through holes and a width of the through hole, circular through holes with particular diameters are provided between the through holes in the bottom portion, and bottom portion through holes with particular widths and lengths are provided on a line connecting the bottom portion sides of the through holes which are positioned at the closest side to the end portion of the U-shaped portion in the end portion thereof, or in a closer side to the end portion than the line, respectively.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: July 22, 2014
    Assignee: GC Corporation
    Inventors: Hidefumi Marumori, Hiroshi Kamohara
  • Dental abutment
    Patent number: 8777617
    Abstract: To provide a dental abutment having an embedded part embedded into an embedding hole of a block and fixed in the embedding hole. An uniform gap for a dental adhesive can be formed along an approximately entire circumference between an outer peripheral surface of the embedded part and an inner surface of the embedding hole. The dental abutment includes a gingiva contact part 1 having a forward-thicker truncated conical shape on the intraoral side; a fitting part 2 projecting toward the jawbone side from the jawbone-side contact surface 1a of the gingiva contact part 1, and fitted into an end part on the intraoral side of the implant fixture so as not to rotate; and an embedded part 3 to be embedded. Three or more projecting line parts 5 are formed on an outer peripheral surface 3a of the embedded part 3 so as to form the uniform gap.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: July 15, 2014
    Assignee: GC Corporation
    Inventors: Go Mashio, Fumiya Sato
  • Stopper storage case
    Patent number: 8739971
    Abstract: A stopper storage case has openings and drill blade insertion paths. The openings are large enough to allow a spring-like engagement portion of the stopper to pass. Each drill blade insertion path is large enough to allow a drill blade to pass. Concave parts extend from the respective openings to the drill blade insertion paths and can store stoppers of different lengths. Each of the concave parts has a protrusion to be engaged in a groove in the outer peripheral surface of the stopper. Stopper holding overhangs formed at the top of each concave part are elastic enough not to interfere with insertion of the stopper from above into the concave part and removal of the stopper from inside the concave part.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: June 3, 2014
    Assignee: GC Corporation
    Inventors: Naoto Fujii, Hirotaka Yoshihara
  • Tray for dental impression extraction
    Patent number: D706937
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 10, 2014
    Assignee: GC Corporation
    Inventors: Takeo Suga, Masataka Itoda, Hiroshi Kamohara
  • Tray for dental impression extraction
    Patent number: D708340
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 1, 2014
    Assignee: GC Corporation
    Inventors: Takeo Suga, Masataka Itoda, Hiroshi Kamohara
  • Dental dispenser
    Patent number: D724202
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: March 10, 2015
    Assignee: GC Corporation
    Inventors: Tatsunosuke Miyano, Shigeru Igarashi
  • Dental plunger
    Patent number: D724722
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 17, 2015
    Assignee: GC Corporation
    Inventors: Tatsunosuke Miyano, Shigeru Igarashi
  • Tray for taking a partial dental impression
    Patent number: D726325
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: April 7, 2015
    Assignee: GC Corporation
    Inventors: Masahiro Tanaka, Junko Tanaka, Hiroshi Kamohara