Patents by Inventor Atsushi Goto
Atsushi Goto 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).
-
Publication number: 20130258282Abstract: An ophthalmologic apparatus includes an obtaining unit configured to obtain an anterior segment image of a subject's eye, a tomographic image obtaining unit configured to obtain a tomographic image of an anterior segment of the subject's eye, a calculation unit configured to calculate a thickness of a cornea based on the tomographic image, and a display control unit configured to cause a display unit to display the anterior segment image, a closed curve on the anterior segment image, and a smallest thickness of the cornea among thicknesses of the cornea in a portion where the closed curve lies.Type: ApplicationFiled: March 26, 2013Publication date: October 3, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Atsushi Goto, Kazuhide Miyata, Makoto Sato, Tomoyuki Makihira, Yoshihiko Iwase, Kazuro Yamada, Ritsuya Tomita, Yohei Minatoya, Daisuke Kibe, Hiroyuki Shinbata
-
Patent number: 8546502Abstract: Disclosed are a production process of a dye polymer having a dye content of from 1 to 50 wt %, and the dye polymer and its use. The production process includes subjecting an addition-polymerizable monomer to living radical polymerization by using, as a polymerization initiator, a dye having a polymerization initiating group enabling the living radical polymerization. The dye polymer and a composition of the dye polymer and a pigment are useful as good coloring agents for various products or articles. The colored products or articles are high in transparency, and are provided with high added value. The dye polymer can also be used as a dispersant for pigments, thereby making it possible to afford pigment dispersions excellent in dispersion properties and dispersion stability.Type: GrantFiled: June 26, 2009Date of Patent: October 1, 2013Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Kyoto UniversityInventors: Hiroyuki Shimanaka, Toshiyuki Hitotsuyanagi, Yoshikazu Murakami, Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
-
Patent number: 8546282Abstract: A glass for a light guide fiber GA1 is used in a core of a fiber 10 of a light guide, and has a refractive index nd between 1.56 and 1.74. The glass for a light guide fiber GA1 has the following composition: (A) SiO2: 20 to 55 wt %, (B11) B2O3: 0 to 2.0 wt %, (B2) does not contain P2O5 and GeO2, (C1) (BaO+SrO+La2O3+Lu2O3+Ta2O5+Gd2O3+WO3): 39 to 46 wt %, (D1) ZnO: 4 to 16 wt %, (E) does not contain Al2O3, (F) does not contain ZrO2, (G) does not contain PbO and As2O3, (H1) (Na2O+K2O): 4 to 10 wt %, (I) Sb2O3: 0 to 0.050 wt %, and (J1) (Na2SO4+K2SO4): 0.32 to 0.78 wt %.Type: GrantFiled: April 27, 2012Date of Patent: October 1, 2013Assignees: Olympus Medical Systems Corp., Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TnoInventors: Hiroaki Kinoshita, Anne Jans Faber, Mathi Rongen, Atsushi Goto, Makoto Tanabe, Yuko Katahira
-
Patent number: 8378044Abstract: Provided is a low-cost, environmentally friendly living radical polymerization catalyst having high activity. The catalyst is used for a living radical polymerization method, and contains a central element consisting of oxygen and at least one halogen atom bound to the central element. Furthermore, an alcohol compound can be used as a catalyst precursor. By polymerizing a monomer in the presence of the catalyst, a polymer having narrow molecular weight distribution can be obtained, and the cost of the living radical polymerization can be remarkably reduced. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages of the catalyst such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (which do not require a post-treatment for a molded article), and the like.Type: GrantFiled: February 6, 2009Date of Patent: February 19, 2013Assignee: Kyoto UniversityInventors: Atsushi Goto, Takeshi Fukuda, Yoshinobu Tsujii
-
Publication number: 20130012626Abstract: Disclosed are a resin-treated pigment characterized in that the resin-treated pigment comprises a pigment and a polymer of an unsaturated bond-containing monomer, a weight ratio of the pigment to the polymer (pigment:polymer) is from 50 to 95 to from 5 to 50, and the polymer is a block copolymer comprising from 5 to 70 mass % of an addition-polymerizable monomer having a UV-absorbing group; a production process of the resin-treated pigment; and a pigment dispersion using the resin-treated pigment.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Applicants: KYOTO UNIVERSITY, DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.Inventors: Hiroyuki Shimanaka, Yoshikazu Murakami, Shinichiro Aoyagi, Atsushi Goto, Yoshinobu Tsujii
-
Publication number: 20120329940Abstract: Disclosed are an alkoxysilyl-containing A-B block copolymer formed from (meth)acrylate monomers as constituent monomers, characterized in that a polymer block of A chain has a number average molecular weight (Mn) of from 1,000 to 50,000 and a molecular weight distribution (Mw/Mn) of not greater than 1.6, a polymer block of B chain comprises alkoxysilyl-containing (meth)acrylate units as constituent monomer units, and the A-B block copolymer as a whole has a molecular weight distribution of not greater than 1.6, a process for the production of the block copolymer, a resin-treated pigment, and a pigment dispersion.Type: ApplicationFiled: February 24, 2011Publication date: December 27, 2012Applicants: KYOTO UNIVERSITY, DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.Inventors: Hiroyuki Shimanaka, Yoshikazu Murakami, Sachio Yoshikawa, Shinya Tsuchida, Atsushi Goto, Yoshinobu Tsujii
-
Publication number: 20120302423Abstract: A glass for a light guide fiber GA1 is used in a core of a fiber 10 of a light guide, and has a refractive index nd between 1.56 and 1.74. The glass for a light guide fiber GA1 has the following composition: (A) SiO2: 20 to 55 wt %, (B11) B2O3: 0 to 2.0 wt %, (B2) does not contain P2O5 and GeO2, (C1) (BaO+SrO+La2O3+Lu2O3+Ta2O3+Gd2O3+WO3): 39 to 46 wt %, (D1) ZnO: 4 to 16 wt %, (E) does not contain Al2O3, (F) does not contain ZrO2, (G) does not contain PbO and As2O3, (H1) (Na2O+K2O): 4 to 10 wt %, (I1) Sb2O3: 0.001 to 0.010 wt %, and (J1) (Na2SO4+K2SO4): 0.32 to 0.78 wt %.Type: ApplicationFiled: April 27, 2012Publication date: November 29, 2012Inventors: Hiroaki KINOSHITA, Anne Jans FABER, Mathi RONGEN, Atsushi GOTO, Makoto TANABE, Yuko KATAHIRA
-
Publication number: 20120289779Abstract: An endoscope includes an insertion portion including an image pickup section, an illumination section, and a light guide inserted inside the insertion portion, the light guide including a plurality of fibers made of a glass not containing lead, the plurality of fibers guiding illuminating light from a light source apparatus to the illumination section, the light guide having a numerical aperture of 0.46 to 0.90. A core glass of a fiber have a refractive index nd of 1.56 to 1.74, and a composition of (A) 20 to 55 wt % SiO2, (B1) 0 to 4.0 wt % B2O3, (B2) neither P2O5 nor GeO2 contained, (C) 25 to 72 wt % (BaO+SrO+La2O3+Lu2O3+Ta2O5+Gd2O3+WO3), (D) 0 to 30 wt % ZnO, (E) no Al2O3 contained, (F) no ZrO2 contained, (G) neither PbO nor As2O3 contained, (H) 0 to 15 wt % (Na2O+K2O), (I) 0 to 0.050 wt % Sb2O3 and (J) 0.26 to 1.63 wt % (Na2SO4+K2SO4).Type: ApplicationFiled: April 12, 2012Publication date: November 15, 2012Inventors: Hiroaki Kinoshita, Atsushi Goto, Daisuke Akiyama, Takeshi Suga, Shinji Egami, Makoto Tanabe, Akihito Miyata, Takuya Takechi, Masao Akai
-
Publication number: 20120190795Abstract: Provided is a low-cost, highly active, environmentally friendly living radical polymerization catalyst which does not require a radical initiator. An organic compound having an oxidation-reduction capability is used as a catalyst. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced. It is made possible to prevent adverse effects of using a radical initiator. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages of the catalyst such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (which do not require a post-treatment for a molded article), etc.Type: ApplicationFiled: May 10, 2010Publication date: July 26, 2012Inventors: Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
-
Publication number: 20120136131Abstract: Provided is a method of living radical polymerization which does not necessitate complicated and intricate synthesis of a dormant species and which is highly efficient. A halogenated derivative compound is used as a dormant species for initiating living radical polymerization. The derivative compound is obtained by halogenating an alcohol compound having a non-conjugated structure or an amine compound having a non-conjugated structure with a halogenating agent capable of halogenating an alcohol or amine. A radical produced by elimination of halogen from the halogenated derivative compound is allowed to react with the unsaturated bond of the monomer. Thus, the monomer, which has a radical-reactive unsaturated bond, is polymerized by living radical polymerization. Preferably, the halogenating agent is a compound (NIS or the like) which also has a function as a catalyst.Type: ApplicationFiled: June 3, 2010Publication date: May 31, 2012Applicant: KYOTO UNIVERSITYInventors: Atsushi Goto, Jeong Sik Kim, Yoshinobu Tsujii, Takeshi Fukuda
-
Publication number: 20110275775Abstract: Provided is a catalyst used for a living radical polymerization method, which contains a central element consisting of carbon and at least one halogen atom binding to the central element. Further, a hydrocarbon compound can be used as a catalyst precursor. A monomer having a radical-reactive unsaturated bond is subjected to a radical polymerization reaction in the presence of the catalyst, consequently a polymer having narrow molecular weight distribution can be obtained, and thus the cost of the living radical polymerization can be remarkably reduced. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst used, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (no need of any post-treatments for a molded article), and the like.Type: ApplicationFiled: September 8, 2009Publication date: November 10, 2011Applicant: Kyoto UniversityInventors: Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
-
Patent number: 8029438Abstract: An endoscope includes: an insertion portion including a distal end portion, to be inserted into a subject; an observation optical system disposed in the insertion portion; an optical member configuring a part of an outer surface of the distal end portion, through which a photographing light to be incident into the observation optical system transmits; a first hydrophilic portion that is film-formed at least on a surface of the optical member; a second hydrophilic portion that is film-formed on a first surface of the distal end portion in which the optical member is disposed; and a third hydrophilic portion that is film-formed on a second surface separate from the first surface of the distal end portion.Type: GrantFiled: May 29, 2008Date of Patent: October 4, 2011Assignee: Olympus Medical Systems Corp.Inventors: Masahiro Hagihara, Takao Yamaguchi, Kiyoshi Tsuji, Atsushi Goto, Hiroaki Kinoshita, Hirofumi Yamamoto
-
Publication number: 20110223529Abstract: Disclosed are an aqueous pigment dispersion containing at least a pigment, water, a high-molecular dispersant, and an alkali. The high-molecular dispersant is a diblock polymer having a formula (1) of A-B or a triblock polymer having a formula (2) of A-B-C. The diblock or triblock polymer is a diblock or triblock polymer obtained by polymerizing addition-polymerizable monomers with a radical generator while using an organic iodide as a polymerization initiating compound and an organic phosphorus compound, organic nitrogen compound or organic oxygen compound as a catalyst. Also disclosed are a production method and use of the aqueous pigment dispersion. With the high-molecular dispersant obtained by a simple living radical polymerization process free of the problems of conventional living radical polymerization and having a precisely-controlled molecular structure, the aqueous pigment dispersion can be obtained with the pigment dispersed in it.Type: ApplicationFiled: July 24, 2009Publication date: September 15, 2011Applicants: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Kyoto UniversityInventors: Hiroyuki Shimanaka, Taiyo Aoyagi, Yoshikazu Murakami, Sachio Yoshikawa, Naoyuki Sakai, Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
-
Publication number: 20110204744Abstract: A rotor core includes a body made of a soft magnetic material powder, the body being rotatable about a predetermined rotation axis; plural arms formed integral with the body from the soft magnetic material powder, the arms projecting toward an outside of the body in a diameter direction of the body and being provided with a coil; and salient poles formed integral with the arms from the soft magnetic material powder, the poles being mounted at the side of the respective arms reverse to the body.Type: ApplicationFiled: February 16, 2011Publication date: August 25, 2011Applicant: TDK CORPORATIONInventors: Takamitsu TSUNA, Atsushi GOTO
-
Publication number: 20110136965Abstract: Disclosed is a pigment dispersion containing at least a pigment, a liquid medium and a high-molecular dispersant. The high-molecular dispersant is a block polymer represented by A-B or A-B-C, in which A, B and C each represent a polymer block and the A and C blocks may be the same or different. The block polymer and its production process are also disclosed. The high-molecular dispersant is free of problems of a smell, coloration, a heavy metal and cost, and its use can provide a pigment dispersion excellent in the dispersion stability of a pigment.Type: ApplicationFiled: August 5, 2009Publication date: June 9, 2011Applicants: Dainichiseika Color & Chemicals Mfg. Co., Ltd., KYOTO UNIVERSITYInventors: Yoshikazu Murakami, Hiroyuki Shimanaka, Toshiyuki Hitotsuyanagi, Shinya Tsuchida, Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
-
Publication number: 20110124832Abstract: Provided is a low-cost, environmentally friendly living radical polymerization catalyst having high activity. The catalyst is used for a living radical polymerization method, and contains a central element consisting of oxygen and at least one halogen atom bound to the central element. Furthermore, an alcohol compound can be used as a catalyst precursor. By polymerizing a monomer in the presence of the catalyst, a polymer having narrow molecular weight distribution can be obtained, and the cost of the living radical polymerization can be remarkably reduced. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages of the catalyst such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (which do not require a post-treatment for a molded article), and the like.Type: ApplicationFiled: February 6, 2009Publication date: May 26, 2011Applicant: KYOTO UNIVERSITYInventors: Atsushi Goto, Takeshi Fukuda, Yoshinobu Tsujii
-
Publication number: 20110112242Abstract: Disclosed are a production process of a dye polymer having a dye content of from 1 to 50 wt %, and the dye polymer and its use. The production process includes subjecting an addition-polymerizable monomer to living radical polymerization by using, as a polymerization initiator, a dye having a polymerization initiating group enabling the living radical polymerization. The dye polymer and a composition of the dye polymer and a pigment are useful as good coloring agents for various products or articles. The colored products or articles are high in transparency, and are provided with high added value. The dye polymer can also be used as a dispersant for pigments, thereby making it possible to afford pigment dispersions excellent in dispersion properties and dispersion stability.Type: ApplicationFiled: June 26, 2009Publication date: May 12, 2011Applicants: Kyoto University, Dainichiseika Color & Chemicals Mfg.Co., Ltd.Inventors: Hiroyuki Shimanaka, Toshiyuki Hitotsuyanagi, Yoshikazu Murakami, Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
-
Publication number: 20100298499Abstract: A highly active and environment-friendly catalyst for use in a living radical polymerization is provided. A catalyst for use in a living radical polymerization method is provided. The catalyst comprises a central element, which is selected from nitrogen and phosphorus, and at least one halogen atom, which is bound to the central element. A monomer having a radical reactive unsaturated bond is subjected to a radical polymerization reaction in the presence of the catalyst, thereby it is possible to obtain a polymer having narrow molecular weight distribution. The present invention has the merits such as low toxicity of the catalyst, a small amount of the catalyst being required, high solubility of the catalyst in the polymerization media, mild reaction conditions, no coloration, no odor (unnecessary post-treatment of molded products). The method of the present invention is more environment-friendly and economical than other living radical polymerization methods.Type: ApplicationFiled: May 2, 2008Publication date: November 25, 2010Applicant: KYOTO UNIVERSITYInventors: Atsushi Goto, Takeshi Fukuda, Yoshinobu Tsujii
-
Patent number: D658080Type: GrantFiled: December 22, 2011Date of Patent: April 24, 2012Assignee: Casio Keisanki Kabushiki KaishaInventors: Seiji Syoubayashi, Atsushi Goto
-
Patent number: D683264Type: GrantFiled: March 22, 2012Date of Patent: May 28, 2013Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hideaki Kanazawa, Kenichi Noda, Ryosuke Matsuoka, Atsushi Goto