Patents by Inventor Yoshikazu TAI
Yoshikazu TAI 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: 11833665Abstract: A control unit executes first loading control if it is determined that a loaded article is not present above a loading surface region based on captured image information, and second loading control if it is determined that it is uncertain whether the loaded article is not present above the loading surface region based on the captured image information. The first loading control causing a holding unit to release a target article when the target article is directly above the loading surface region and the lower surface of the target article is higher than the upper surface of the loading surface region by a first specified distance, and the second loading control causing the holding unit to release the target article when the target article is directly above the loading surface region and the lower surface of the target article is higher, by a second specified distance, than a specified height.Type: GrantFiled: November 12, 2019Date of Patent: December 5, 2023Assignee: Daifuku Co., Ltd.Inventors: Mitsuo Morikubo, Yoshikazu Tai, Takuya Gondoh, Masami Iwai, Atsushi Minoo, Shigeru Sugano
-
Patent number: 11760519Abstract: A transfer device and a control device for controlling the transfer device are provided. The control device is configured to execute setting control to set a storing position, in a container, of each of a plurality of articles to be stored in the container, storage control to control the transfer device so as to store each of the articles at the storing position, and replacement control to replace one of a first holding portion and a second holding portion attached to the attachment portion with the other one. The setting control is control to set the storing position in accordance with an order of transferring the plurality of articles so as to sequentially place the articles from a reference position that is set at a position adjacent to a side wall portion.Type: GrantFiled: November 12, 2019Date of Patent: September 19, 2023Assignee: Daifuku Co., Ltd.Inventors: Mitsuo Morikubo, Yoshikazu Tai, Masami Iwai, Atsushi Minoo
-
Patent number: 11326236Abstract: Provided is a black stainless steel sheet that has excellent weldability, that can ensure good toughness and corrosion resistance, and that can maintain the blackness of the surface thereof, even after being welded. This black ferrite-based stainless steel sheet having excellent weldability includes, as a base, a stainless steel containing, in mass %, 0.020% or less of C, 1.0% or less of Si, 0.35% or less of Mn, 0.04% or less of P, 0.005% or less of S, 11-25% of Cr, 1.0% or less of Mo, 0.020% or less of N, 0.4% or less of Al, 10(C+N) to 0.3% of Ti, 0.05% or less of Nb, and 0.01% or less of O, and has a surface in which an oxide coating is formed on the base, wherein the surface has a lightness index (L*) satisfying L*?45, chromaticity indices (a*, b*) satisfying ?5?a*?5 and ?5?b*?5, and a blackness (E) satisfying E=(L*2+a*2+b*2)1/2?45.Type: GrantFiled: January 26, 2018Date of Patent: May 10, 2022Assignee: NIPPON STEEL STAINLESS STEEL CORPORATIONInventors: Yoshikazu Tai, Tomoaki Saida, Kazunari Imakawa, Satoshi Suzuki
-
Publication number: 20220017249Abstract: A transfer device and a control device for controlling the transfer device are provided. The control device is configured to execute setting control to set a storing position, in a container, of each of a plurality of articles to be stored in the container, storage control to control the transfer device so as to store each of the articles at the storing position, and replacement control to replace one of a first holding portion and a second holding portion attached to the attachment portion with the other one. The setting control is control to set the storing position in accordance with an order of transferring the plurality of articles so as to sequentially place the articles from a reference position that is set at a position adjacent to a side wall portion.Type: ApplicationFiled: November 12, 2019Publication date: January 20, 2022Inventors: Mitsuo Morikubo, Yoshikazu Tai, Masami Iwai, Atsushi Minoo
-
Publication number: 20220009090Abstract: An article transfer facility (100) includes a transfer device (3) that performs a first operation to take out an article (W) that are supported by a first container (C1), from the first container (C1), and a second operation to load the article (W) taken out from the first container (C1), onto a second container (C2); and an inclination device (5) that supports the second container (C2) at a predetermined position (P2), wherein the second container (C2) has a rectangular mounting surface (S) onto which the articles (W) are to be mounted, and is formed in a box shape with an open upper surface, and the inclination device (5) supports the second container (C2) in an inclined state such that a target corner portion (Sct) that is one of a plurality of corner portions (Sc) of the mounting surface (S) is located lower than the other corner portions (Sc).Type: ApplicationFiled: November 12, 2019Publication date: January 13, 2022Inventors: Mitsuo Morikubo, Yoshikazu Tai, Masami Iwai, Takuya Gondoh, Atsushi Minoo, Kazuyoshi Ohgita, Manabu Onayama, Kiyoji Mori
-
Publication number: 20220009108Abstract: A control unit executes first loading control is determined that a loaded article is not present above a loading surface region based on captured image information and second loading control if it is determined that it is uncertain whether the loaded article is not present above the loading surface region based on the captured image information. The first loading control causing a holding unit to release a target article when the target article is directly above the loading surface region and the lower surface of the target article is higher than the upper surface of the loading surface region by a first specified distance, and the second loading control causing the holding unit to release the target article when the target article is directly above the loading surface region and the lower surface of the target article is higher, by a second specified distance, than a specified height.Type: ApplicationFiled: November 12, 2019Publication date: January 13, 2022Inventors: Mitsuo Morikubo, Yoshikazu Tai, Takuya Gondoh, Masami Iwai, Atsushi Minoo, Shigeru Sugano
-
Publication number: 20200232075Abstract: Provided is a black stainless steel sheet that has excellent weldability, that can ensure good toughness and corrosion resistance, and that can maintain the blackness of the surface thereof, even after being welded. This black ferrite-based stainless steel sheet having excellent weldability includes, as a base, a stainless steel containing, in mass %, 0.020% or less of C, 1.0% or less of Si, 0.35% or less of Mn, 0.04% or less of P, 0.005% or less of S, 11-25% of Cr, 1.0% or less of Mo, 0.020% or less of N, 0.4% or less of Al, 10(C+N) to 0.3% of Ti, 0.05% or less of Nb, and 0.01% or less of 0, and has a surface in which an oxide coating is formed on the base, wherein the surface has a lightness index (L*) satisfying L*<45, chromaticity indices (a*, b*) satisfying ?5?a*?5 and ?5?b*?5, and a blackness (E) satisfying E=(L*2+a*2+b*2)1/2?45.Type: ApplicationFiled: January 26, 2018Publication date: July 23, 2020Inventors: Yoshikazu TAI, Tomoaki SAIDA, Kazunari IMAKAWA, Satoshi SUZUKI
-
Publication number: 20180304433Abstract: A stainless steel pipe may be provided which exhibits excellent corrosion resistance so as not to rust at an early stage even in a waterfront environment affected by sea salt particles. The stainless steel pipe may have a polishing mark on a surface, an oxide film exhibiting color is not present on the surface, and an average number of surface defects including covering by a metal base of 5 ?m or more on the surface is suppressed to 5 or fewer per 0.01 mm2.Type: ApplicationFiled: September 6, 2016Publication date: October 25, 2018Inventors: Tomoaki SAIDA, Yoshikazu TAI, Kazunari IMAKAWA