Patents by Inventor Kunio Kataoka
Kunio Kataoka 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: 12117852Abstract: In a gas governor, an auxiliary chamber divided by a separating wall from a main chamber that is a portion of the secondary pressure chamber is provided in the secondary pressure chamber, the auxiliary chamber communicates with the main chamber through a communicating passage, the separating wall is positioned at a portion away in a circumferential direction from an outflow-port opened portion that is a peripheral wall portion of the secondary pressure chamber, in which the outflow port is opened, and the separating wall is provided so that a distance from a valve hole and a curvature in the circumferential direction of at least an end portion of the separating wall, which is close to the valve seat, are equal to those of an end portion of the outflow-port opened portion, which is close to the valve seat.Type: GrantFiled: July 13, 2023Date of Patent: October 15, 2024Assignee: RINNAI CORPORATIONInventors: Kazuyuki Shichi, Kunio Kataoka
-
Patent number: 11925908Abstract: A fine bubble generator may include an inlet; an outlet; a first fine bubble generation portion; and a second fine bubble generation portion. The first fine bubble generation portion includes: a diameter-reducing flow path and a diameter-increasing flow path. The second fine bubble generation portion includes: a first swirling flow generation portion; and a second swirling flow generation portion. The first swirling flow generation portion includes: a first outer peripheral portion; and a plurality of first vanes disposed configured to generate a first swirling flow flowing in a first swirling direction with respect to a center axis of the second fine bubble generation portion. The second swirling flow generation portion includes: a second outer peripheral portion; and a plurality of second vanes configured to generate a second swirling flow flowing in a second swirling direction opposite to the first swirling direction with respect to the center axis.Type: GrantFiled: June 6, 2022Date of Patent: March 12, 2024Assignee: RINNAI CORPORATIONInventors: Tomoyuki Shimazu, Kunio Kataoka
-
Publication number: 20240077894Abstract: In a gas governor, an auxiliary chamber divided by a separating wall from a main chamber that is a portion of the secondary pressure chamber is provided in the secondary pressure chamber, the auxiliary chamber communicates with the main chamber through a communicating passage, the separating wall is positioned at a portion away in a circumferential direction from an outflow-port opened portion that is a peripheral wall portion of the secondary pressure chamber, in which the outflow port is opened, and the separating wall is provided so that a distance from a valve hole and a curvature in the circumferential direction of at least an end portion of the separating wall, which is close to the valve seat, are equal to those of an end portion of the outflow-port opened portion, which is close to the valve seat.Type: ApplicationFiled: July 13, 2023Publication date: March 7, 2024Applicant: RINNAI CORPORATIONInventors: Kazuyuki Shichi, Kunio Kataoka
-
Patent number: 11754315Abstract: A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. Fuel gas flowing through in an inlet is distributed to a plurality of distribution chambers through a main channel. A bypass channel parallel with the main channel also feeds fuel gas to a maximum distribution chamber. This can prevent the feeding of the fuel gas to the maximum distribution chamber from being affected by and reduced by the feeding of the fuel gas to the bypassed distribution chambers. This also prevent the feeding of the fuel gas to the other distribution chambers from being affected by and reduced by the feeding of the fuel gas to the maximum distribution chamber. The plurality of distribution chambers are thus fed with fuel gas at appropriate flow rates.Type: GrantFiled: January 14, 2021Date of Patent: September 12, 2023Assignee: Rinnai CorporationInventors: Kazuyuki Shichi, Kunio Kataoka
-
Patent number: 11637926Abstract: A method for determining candidates for a person who is to handle a failure upon occurrence of a failure as call-target persons and calling the call-target persons via the Internet is provided. The method is a method which is to be executed by a server, for supporting calling of call-target persons within a list in which candidates for a person who is to handle a failure are defined as call-target persons, upon occurrence of a failure, and includes a step of calling a client of a call-target person selected from the list via the Internet, and a step of receiving a response result indicating a result of operation in response to the calling from the client of the selected call-target person.Type: GrantFiled: February 13, 2020Date of Patent: April 25, 2023Assignee: INTERNET INITIATIVE JAPAN INC.Inventors: Masataka Takayama, Yushi Nakai, Yoshihisa Tanaka, Takahiro Asano, Yuta Nakagami, Jun Kambe, Kunio Kataoka
-
Publication number: 20220387945Abstract: A fine bubble generator may include an inlet; an outlet; a first fine bubble generation portion; and a second fine bubble generation portion. The first fine bubble generation portion includes: a diameter-reducing flow path and a diameter-increasing flow path. The second fine bubble generation portion includes: a first swirling flow generation portion; and a second swirling flow generation portion. The first swirling flow generation portion includes: a first outer peripheral portion; and a plurality of first vanes disposed configured to generate a first swirling flow flowing in a first swirling direction with respect to a center axis of the second fine bubble generation portion. The second swirling flow generation portion includes: a second outer peripheral portion; and a plurality of second vanes configured to generate a second swirling flow flowing in a second swirling direction opposite to the first swirling direction with respect to the center axis.Type: ApplicationFiled: June 6, 2022Publication date: December 8, 2022Applicant: RINNAI CORPORATIONInventors: Tomoyuki SHIMAZU, Kunio KATAOKA
-
Patent number: 11493236Abstract: A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. A gas manifold distributes fuel gas flowing in through an inlet to a plurality of distribution chambers through a main channel. The main channel includes a flow guide that guides the fuel gas toward a maximum distribution chamber and reduces the fuel gas flowing into other distribution chambers. This allows fuel gas at a sufficient flow rate to be fed more easily to the maximum distribution chamber than to the other distribution chambers for a larger number of distribution chambers included in the gas manifold, allowing the plurality of distribution chambers to be fed with fuel gas at appropriate flow rates.Type: GrantFiled: January 14, 2021Date of Patent: November 8, 2022Assignee: Rinnai CorporationInventors: Kazuyuki Shichi, Kunio Kataoka
-
Publication number: 20220210271Abstract: A method for determining candidates for a person who is to handle a failure upon occurrence of a failure as call-target persons and calling the call-target persons via the Internet is provided. The method is a method which is to be executed by a server, for supporting calling of call-target persons within a list in which candidates for a person who is to handle a failure are defined as call-target persons, upon occurrence of a failure, and includes a step of calling a client of a call-target person selected from the list via the Internet, and a step of receiving a response result indicating a result of operation in response to the calling from the client of the selected call-target person.Type: ApplicationFiled: February 13, 2020Publication date: June 30, 2022Applicant: Internet Initiative Japan Inc.Inventors: Masataka TAKAYAMA, Yushi NAKAI, Yoshihisa TANAKA, Takahiro ASANO, Yuta NAKAGAMI, Jun KAMBE, Kunio KATAOKA
-
Publication number: 20210293183Abstract: A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. Fuel gas flowing through in an inlet is distributed to a plurality of distribution chambers through a main channel. A bypass channel parallel with the main channel also feeds fuel gas to a maximum distribution chamber. This can prevent the feeding of the fuel gas to the maximum distribution chamber from being affected by and reduced by the feeding of the fuel gas to the bypassed distribution chambers. This also prevent the feeding of the fuel gas to the other distribution chambers from being affected by and reduced by the feeding of the fuel gas to the maximum distribution chamber. The plurality of distribution chambers are thus fed with fuel gas at appropriate flow rates.Type: ApplicationFiled: January 14, 2021Publication date: September 23, 2021Inventors: Kazuyuki SHICHI, Kunio KATAOKA
-
Publication number: 20210293453Abstract: A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. A gas manifold distributes fuel gas flowing in through an inlet to a plurality of distribution chambers through a main channel. The main channel includes a flow guide that guides the fuel gas toward a maximum distribution chamber and reduces the fuel gas flowing into other distribution chambers. This allows fuel gas at a sufficient flow rate to be fed more easily to the maximum distribution chamber than to the other distribution chambers for a larger number of distribution chambers included in the gas manifold, allowing the plurality of distribution chambers to be fed with fuel gas at appropriate flow rates.Type: ApplicationFiled: January 14, 2021Publication date: September 23, 2021Inventors: Kazuyuki SHICHI, Kunio KATAOKA
-
Patent number: 7846303Abstract: The present invention provides a multi-structured internal heat exchange-type distillation column including at least an outermost heat exchange section, an intermediate section, and an innermost heat exchange section, in which the innermost heat exchange section is isolated from the intermediate section, the outermost heat exchange section is also isolated from the intermediate section, the outermost heat exchange section and the innermost heat exchange section are in communication with one another through at least two vapor tunnel connecting ports, a channel is formed inside the outermost heat exchange section in such a manner that, in a case where at least one of the vapor tunnel connecting ports serves as an inlet for vapor from the innermost heat exchange section into the outermost heat exchange section, and the other vapor tunnel connecting port serves as an outlet for vapor from the outermost heat exchange section back to the innermost heat exchange section, the vapor can smoothly flow in one-way traffiType: GrantFiled: August 15, 2005Date of Patent: December 7, 2010Assignee: Kansai Chemical Engineering Co., Ltd.Inventors: Hideo Noda, Hiroshi Yamaji, Nobuyuki Kuratani, Kunio Kataoka
-
Publication number: 20070251679Abstract: The present invention provides a multi-structured internal heat exchange-type distillation column comprising at least an outermost heat exchange section, an intermediate section, and an innermost heat exchange section, in which the innermost heat exchange section is isolated from the intermediate section, the outermost heat exchange section is also isolated from the intermediate section, the outermost heat exchange section and the innermost heat exchange section are in communication with one another through at least two vapor tunnel connecting ports, a channel is formed inside the outermost heat exchange section in such a manner that, in a case where at least one of the vapor tunnel connecting ports serves as an inlet for vapor from the innermost heat exchange section into the outermost heat exchange section, and the other vapor tunnel connecting port serves as an outlet for vapor from the outermost heat exchange section back to the innermost heat exchange section, the vapor can smoothly flow in one-way traffType: ApplicationFiled: August 15, 2005Publication date: November 1, 2007Applicant: Kansai Chemical Engineering Co., Ltd.Inventors: Hideo Noda, Hiroshi Yamaji, Nobuyuki Kuratani, Kunio Kataoka
-
Patent number: 5358538Abstract: A process for the production of a black coloring material characterised by treating a compound selected from finely powdered sugar, protein and a polyamide polymer, having amino groups with a naphthoquinone derivative represented by the general formula (1): ##STR1## wherein R.sub.1 represents a hydrogen atom, a hydroxyl group, a halogen atom, or a group represented by the following formula: ##STR2## wherein R.sub.2 represents a hydrogen atom or a hydroxyl group, R.sub.3 represents an alkyl group, an alkenyl group or a hydroxylalkyl group, and n represents 1 or 2; cosmetics comprising a black coloring material produced by the above process; and a process for staining a substrate using the obtained black coloring material.Type: GrantFiled: March 10, 1992Date of Patent: October 25, 1994Assignee: Ihara Chemical Industry Co., Ltd.Inventors: Susumu Shimoyama, Ujo Maeda, Keiko Maeda, Yasuko Noda, Kunio Kataoka, Eiichi Eto, Satoru Shimoyama, Tasuku Shimoyama
-
Patent number: 5244469Abstract: A novel black coloring material is obtained by treating a chitosan with a dyestuff of the lithospermum root. If a water-insoluble chitosan is used as the chitosan, a finely divided black coloring material is obtained, and if a gelatinous chitosan salt is used as the chitosan, a gelatinous black coloring material is obtained. If a water-soluble chitosan, chitosan oligosaccharide or D-glucosamine, or a salt thereof is used as the chitosan, a liquid black coloring material is obtained. If a powdery polymeric substance is treated with such a black coloring material, a polymer-based black coloring material is obtained, and if a fiber is dyed with such a black coloring material, the fiber is dyed to a black color having a low lightness.Type: GrantFiled: December 13, 1991Date of Patent: September 14, 1993Assignee: Ihara Chemical Industry Co., Ltd.Inventors: Susumu Shimoyama, Yasuko Noda, Ujo Maeda, Tasuku Shimoyama, Kunio Kataoka, Eiichi Eto, Mieko Goto, Yoshio Hara, Satoru Shimoyama, Keiko Maeda, Kazumi Konya