Patents Assigned to Sumitomo Bakelite Co., Ltd.
  • Publication number: 20210002414
    Abstract: The resin composition for encapsulating semiconductor of the present invention is a resin composition for encapsulating semiconductor including an epoxy resin, a curing agent, an inorganic filler, and carbon black fine particles, in which when the resin composition for encapsulating semiconductor is injection-molded to have a length of 80 mm, a width of 10 mm and a thickness of 4 mm under conditions of a mold temperature of 175° C., an injection pressure of 10 MPa, and a curing time of 120 seconds, and then heated at 175° C. for 4 hours to obtain a cured product, and then a surface of the obtained cured product is observed with a fluorescence microscope, a maximum particle diameter of aggregates of the carbon black fine particles is 50 ?m or less.
    Type: Application
    Filed: January 30, 2019
    Publication date: January 7, 2021
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takahiro KOTANI, Hiroshi SHIBATA
  • Publication number: 20200385612
    Abstract: A protective film 10 of the present invention is used by being attached to a resin substrate 21 at the time of performing heat bending on the resin substrate 21 while heating the resin substrate 21. The protective film 10 includes a base material layer and a pressure sensitive adhesive layer which is positioned between the base material layer and the resin substrate 21 and is adhered to the resin substrate 21. The base material layer is formed of a laminate having a first layer which is positioned on the opposite side of the pressure sensitive adhesive layer, contains a thermoplastic resin, and has a melting point of 150° C. or higher and a second layer which is positioned on the pressure sensitive adhesive layer side, contains a thermoplastic resin, and has a melting point of lower than 120° C.
    Type: Application
    Filed: April 25, 2018
    Publication date: December 10, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Kazufusa ONODERA
  • Publication number: 20200367960
    Abstract: There is provided a medical high frequency treatment device (200). A distal portion of the high frequency treatment device (200) includes a high frequency treatment device knife (100) having a pair of scissors (10) so as to incise a biological tissue. The pair of scissors (10) is configured to be capable of shearing the biological tissue by pivoting in a direction closer to each other. Each of the pair of scissors (10) has a blade surface (13). Each surface of the pair of scissors (10) includes a formation region of a non-conductive layer (insulating film (12)) and an electrode region (19) where the non-conductive layer is not formed on the surface of the blade surface (13). With regard to at least one of the pair of scissors (10), a width dimension of the electrode region (19) in a plate thickness direction of the scissors (10) varies depending on a position of the scissors (10) in a longitudinal direction.
    Type: Application
    Filed: September 10, 2018
    Publication date: November 26, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Yasuhito ITAMI, Masao IKEDA, Yasuhisa ISHII
  • Publication number: 20200361178
    Abstract: A resin composition of the present invention is used for forming a second layer in an optical layer 10, contains a silicon-modified (meth) acryl resin, a urethane (meth) acrylate, and a polyfunctional (meth) acrylate, and satisfies the following condition A, in which the optical layer 10 includes a first layer (base material layer 1) containing a resin material and a visible light absorber and the second layer (protective layer 2) protecting the first layer. Condition A: In a case where the second layer is formed on a base material, a coating film of a mixed solvent containing a petroleum-based solvent at a proportion equal to or higher than 45 wt % is formed on the second layer and left as it is, and then the mixed solvent is removed, an adherence, which is determined by a cross-cut method, of the second layer cut in the form of a lattice with respect to the base material is equal to or higher than 95%.
    Type: Application
    Filed: September 24, 2019
    Publication date: November 19, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Yuichiro FUNAKOSHI
  • Patent number: 10836127
    Abstract: The polarized laminate of the invention includes a polarized film, which has a first surface and a second surface that is a reverse side of the first surface; a first layer provided on a side of the first surface and formed of a first resin material including a polyamide; and a second layer provided on a side of the second surface and formed of a second resin material including a polyamide. When a Barcol hardness of the polarized laminate before and after immersion of the polarized laminate in distilled water at 80° C. for 15 minutes is measured according to JIS K 7060:1995, the Barcol hardness after the immersion is from 70% to 100% with respect to the Barcol hardness before the immersion.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 17, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Hiroshi Oya, Kazufusa Onodera, Yohei Kamizaki
  • Publication number: 20200346450
    Abstract: A decorative laminate of the present invention includes a transparent film, a coating layer constituted of a hard resin material and disposed on a side of a first surface which is one surface of the transparent film, a shielding layer disposed on a side of a second surface of the transparent film, which is the other surface opposite to the first surface, and a printed layer disposed between the coating layer and the shielding layer.
    Type: Application
    Filed: January 22, 2019
    Publication date: November 5, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kosaku TAMURA, Satoshi HORIUCHI, Toshinori KIFUKU
  • Publication number: 20200310015
    Abstract: An optical sheet of the present invention includes a specific wavelength absorption layer that contains a polycarbonate as a main material and a light absorbing agent that absorbs light of a specific wavelength out of light in a wavelength range of 350 nm to 740 nm, in which the polycarbonate has a viscosity average molecular weight Mv of 20,000 to 30,000. In addition, the specific wavelength absorption layer further includes an ultraviolet absorbing agent that absorbs light in a wavelength range of 100 nm to 420 nm.
    Type: Application
    Filed: September 27, 2018
    Publication date: October 1, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takuya OYAMA, Tetsuya ISHIKAWA
  • Publication number: 20200271177
    Abstract: A phenol resin for a wet friction material of the invention contains a resol-type phenol resin having, in one molecule, a structural unit A which is derived from a phenol compound having one phenolic hydroxyl group and a structural unit B which is derived from a polyfunctional phenol compound having two phenolic hydroxyl groups.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 27, 2020
    Applicants: NSK-WARNER K.K., SUMITOMO BAKELITE CO., LTD.
    Inventors: Takuya Tsunemasu, Takao Kunimi
  • Patent number: 10737065
    Abstract: A medical device is provided, including: a sheath portion (10); a pair of operation wires (30); and a turning operation portion (60) in which the sheath portion (10) is bent in a direction corresponding to the pulled one operation wire (30) through a turning operation. The turning operation portion (60) includes a wire fixation panel (64) around which the operation wires (30) are wound on a side peripheral surface; and a penetration portion (63c) and a closing portion (63d) which are provided further radially outwards than the side peripheral surface of the wire fixation panel (64) and at a position facing the side peripheral surface, so as to be integrated with the wire fixation panel (64).
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: August 11, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kenichi Kanemasa, Shinetsu Harata
  • Publication number: 20200249378
    Abstract: An optical sheet of the present invention is an optical sheet that has flexibility and is used in a curved state of being curved in one direction, and includes a polarized layer 12 that polarizes incident light and a specific wavelength absorption layer provided on a curved concave side from the polarized layer 12 and containing a resin material and a light absorbing agent that absorbs light in a specific wavelength range out of light in a wavelength range of 350 nm to 740 nm. In addition, the resin material is preferably a polycarbonate having a viscosity average molecular weight My of 20,000 to 30,000.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 6, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takuya OYAMA, Tetsuya ISHIKAWA
  • Patent number: 10729418
    Abstract: According to the present invention, there is provided an artificial tendon-forming auxiliary instrument in which a valve cusp of a cardiac valve and a papillary muscle can be joined together with an artificial tendon through an easy procedure and the artificial tendon can be finished so as to have a desired length. According to an aspect of the present invention, an auxiliary instrument (100) is used for joining a valve cusp (210) of the cardiac valve and a papillary muscle (212) with an artificial tendon (200). A pair of end-portion support portions (20) and (21) respectively supporting the valve cusp (210) and the papillary muscle (212) is provided at both ends in a longitudinal direction. The auxiliary instrument (100) includes first and second tendon insertion ports through which the artificial tendon (200) is inserted, a tendon guide portion (30), and an instrument holding portion (40).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 4, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Keiji Oi, Kei Hyugaji, Keitaro Sugita, Akira Kawamata, Takashi Sato
  • Patent number: 10720375
    Abstract: A substrate for a power module (100) of the present invention includes a metal substrate (101), an insulating resin layer (102) provided on the metal substrate (101), and a metal layer (103) provided on the insulating resin layer (102). The insulating resin layer (102) includes a thermosetting resin (A) and inorganic fillers (B) dispersed in the thermosetting resin (A), a maximum value of a dielectric loss ratio of the insulating resin layer (102) at a frequency of 1 kHz and 100° C. to 175° C. is equal to or less than 0.030, and a change in a relative permittivity is equal to or less than 0.10.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 21, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Shunsuke Mochizuki, Kazuya Kitagawa, Yoji Shirato, Keita Nagahashi, Mika Tsuda, Satoshi Maji
  • Publication number: 20200215308
    Abstract: A medical device includes an elongated medical device body; a first operating line and a second operating line that are inserted in an axial direction of the medical device body; and a bending operating part for performing a bending operation of a distal end part of the medical device body by pulling the first operating line and the second operating line, in which at an intermediate part and a proximal end part in the axial direction of the medical device body, a first operating line and a second operating line extend in parallel so as to be spaced apart from each other in a circumferential direction of the medical device body, and at a distal end part in the axial direction of the medical device body, the first operating line and the second operating line are gradually curved so as to approach each other in the circumferential direction of the medical device body toward a distal end side and joined together.
    Type: Application
    Filed: August 2, 2018
    Publication date: July 9, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kenichi KANEMASA, Iji ONOZUKA
  • Publication number: 20200216484
    Abstract: A purification agent which includes a compound having a betaine structure, and which is for a sugar chain having a length equal to or longer than that of a monosaccharide or for a glycopeptide having a sugar chain having a length equal to or longer than that of a monosaccharide.
    Type: Application
    Filed: October 31, 2018
    Publication date: July 9, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Masaaki Toyoda, Takayuki Matsumoto, Midori Sakaguchi, Takahiro Katayama
  • Publication number: 20200197037
    Abstract: The present invention provides a coronary artery bypass surgery treatment tool or the like including a flexible tube, a suction cup in which an opening portion is formed to communicate with the flexible tube and which is provided at a distal end of the flexible tube, a joint portion which has a suction path, a male connector which is provided in one of a proximal end of the flexible tube and a distal end of the suction path of the joint portion, and a female connector which is provided in the other thereof and is detachably connected to the male connector.
    Type: Application
    Filed: May 16, 2018
    Publication date: June 25, 2020
    Applicants: SUMITOMO BAKELITE CO., LTD., NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Hirokuni ARAI, Toshifumi SAKATE, Akira KAWAMATA, Shinetsu HARATA
  • Publication number: 20200188630
    Abstract: A catheter (100) includes a resin-made distal tip (80) linked to a distal end of a catheter body (10), and the distal tip (80) has a distal lumen (81) having an open distal end. The distal lumen (81) communicates with a lumen (31). The catheter (100) is an inactive type microcatheter in which an outer diameter of the distal end of the catheter body (10) is 0.6 mm or smaller and a maximum outer diameter of the distal tip (80) is 0.6 nun or smaller. A dimension of a marker (70) in an axial direction of the catheter body (10) is smaller than the maximum outer diameter of the distal tip (80), and the length of the distal tip (80) in the axial direction of the distal tip (80) is 3 times to 18 times the maximum outer diameter of the distal tip (80).
    Type: Application
    Filed: August 24, 2018
    Publication date: June 18, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Yasuhiro FUJITA, Yasushi MATSUMOTO, Taichi SHIMIZU, Yusaku SUGIHARA
  • Publication number: 20200171276
    Abstract: The present invention provides a catheter provided with a tubular main body. The catheter is characterized in that: the tubular main body has defined therein a first length region and a second length region which is adjacent to the first length region and which is located closer to the distal side than the first length region; the resin hardness of the second length region is lower than the resin hardness of the first length region; and the distance from a plane perpendicular to the axial direction of the tubular main body to the joining line between the first length region and the second length region is non-uniform.
    Type: Application
    Filed: May 17, 2018
    Publication date: June 4, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Iji ONOZUKA
  • Patent number: 10646228
    Abstract: An endoscopic clip device including a clip, a treatment instrument body comprising a sheath, an operation wire, and a distal connection portion, a sleeve accommodated inside the sheath and accommodating the connection portion in distal portion of the wire such that portion of inner diameter of the sleeve is smaller than outer diameter of the locking portion when the connection portion is drawable from the accommodation portion. The sleeve has diameter enlargement portion on distal side of the sleeve and elastically self-openable, a diameter reduction step portion on proximal side of the enlargement portion, and a sleeve body positioned on the proximal side of the enlargement portion from the step portion and having radial rigidity higher than that of the enlargement portion, and the inner diameter of the sleeve body is smaller than the outer diameter of the locking portion when the connection portion is drawable from the accommodation portion.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: May 12, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takuya Hayashi, Masao Ikeda, Hiroshi Utsugi, Etsuro Yamabe, Hideaki Matsunami
  • Publication number: 20200121893
    Abstract: The invention provides a medical device or the like including an elongated medical device body; a first operating line and a second operating line that are inserted in an axial direction of the medical device body; and a bending operating part for performing a bending operation of a distal end part of the medical device body by pulling the first operating line and the second operating line, at an intermediate part and a proximal end part in the axial direction of the medical device body, the first operating line and the second operating line extending in parallel so as to be spaced apart from each other in a circumferential direction of the medical device body, and at a distal end part in the axial direction of the medical device body, the first operating line and the second operating line being curved and joined together so as to approach each other in the circumferential direction of the medical device body gradually toward a distal end side.
    Type: Application
    Filed: August 2, 2018
    Publication date: April 23, 2020
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kenichi KANEMASA, Iji ONOZUKA
  • Patent number: 10537706
    Abstract: A method for manufacturing a catheter includes a process of supplying a resin material in a melted state to the periphery of a core wire (90) and molding a hollow tube (82) having the core wire (90) inserted thereinto; a process of arranging the hollow tube (82) having the core wire (90) inserted thereinto, on an outer peripheral side of a main lumen forming region of a tubular body part (10) made of resin; a process of extracting the core wire (90) from the inside of the hollow tube (82) to form a sublumen after the core wire (90) inside the hollow tube (82) is elongated and reduced in diameter to peel off the hollow tube (82) and the core wire (90), and a process of inserting an operating wire into the hollow tube (82).
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: January 21, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Kenichi Kanemasa, Hayao Tanaka, Kenjiro Yamaguchi