Patents by Inventor Chihiro Iwasaki
Chihiro Iwasaki 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: 20240092958Abstract: A thermosetting resin composition containing a maleimide compound (a) having at least one N-substituted maleimide group, and a compound (b) represented by the following general formula (1) exhibiting no reactivity with the maleimide group of the component (a) (Xb1 represents a single bond or a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 5 carbon atoms; Rb1 and Rb2 each independently represent a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 18 ring carbon atoms, a substituted or unsubstituted heterocyclic aromatic hydrocarbon group having 5 to 20 ring atoms, an oxygen atom-containing group, or a group containing a combination of these groups; and m and n each independently represent an integer of 0 to 5).Type: ApplicationFiled: December 17, 2021Publication date: March 21, 2024Inventors: Koji MORITA, Ryo SHIMOKAWA, Shinji TSUCHIKAWA, Keiichi KASUGA, Chihiro HAYASHI, Tomio IWASAKI
-
Patent number: 11297905Abstract: A fastening pin includes a needle having a tip and a base end, a holder having a base-end holding part that holds the base end of the needle, and a hook part provided in the holder and configured for the tip of the needle to be hooked thereto. The needle has a non-straight shape bulging in a direction away from the holder and is elastically pivotable around the based end toward the hook part. The hook part is provided with a groove and a protruding guide part. The groove is open toward the holder and configured for the tip of the needle to engage therein. The protruding guide part is arranged on the opposite side of the holder with respect to the groove.Type: GrantFiled: March 16, 2021Date of Patent: April 12, 2022Assignee: CLOVER MFG. CO., LTD.Inventors: Yui Teramoto, Chihiro Iwasaki
-
Publication number: 20210298429Abstract: A fastening pin includes a needle having a tip and a base end, a holder having a base-end holding part that holds the base end of the needle, and a hook part provided in the holder and configured for the tip of the needle to be hooked thereto. The needle has a non-straight shape bulging in a direction away from the holder and is elastically pivotable around the based end toward the hook part. The hook part is provided with a groove and a protruding guide part. The groove is open toward the holder and configured for the tip of the needle to engage therein. The protruding guide part is arranged on the opposite side of the holder with respect to the groove.Type: ApplicationFiled: March 16, 2021Publication date: September 30, 2021Inventors: Yui TERAMOTO, Chihiro IWASAKI
-
Patent number: 11098425Abstract: A sewing machine guiding tool includes a presser foot, a holder and a gauge. The presser foot includes a bottom wall and a rear support. The bottom wall is formed with a needle-passing hole and with a slit extending from the needle-passing hole to the front end of the bottom wall. The rear support is connected to the rear end of the bottom wall. The holder, attached to a presser bar of the sewing machine, holds the presser foot pivotally about a horizontal axis. The gauge, supported by the rear support to be slidable in parallel to the horizontal axis, includes a ruler plate and a guide portion. The ruler plate has a surface marked with a scale. The guide portion extends from the ruler plate. The ruler plate is disposed above the bottom wall with its surface inclined to become higher as proceeding rearward.Type: GrantFiled: September 30, 2019Date of Patent: August 24, 2021Assignee: CLOVER MFG. CO., LTD.Inventors: Nancy L. Zieman, Yuji Kawasaki, Chihiro Iwasaki
-
Patent number: 10729198Abstract: A seam ripper includes a metal blade member, a handle and a slider. The blade member is supported by the handle and made of a shaft and a blade part at an end of the shaft. The slider causes the blade member to move between a retracted position and an advanced position. The shaft is housed in the handle at the retracted position. The blade part and at least a portion of the shaft are outside the handle at the advanced position. The blade part includes a cutting blade flanked by a needle portion and a ball-shaped portion. When the blade member is at the retracted position, the entirety of the needle portion is housed in the handle, and a portion of the cutting blade is exposed to the outside of the handle.Type: GrantFiled: September 18, 2018Date of Patent: August 4, 2020Assignee: CLOVER MFG. CO., LTD.Inventors: Chihiro Iwasaki, Atsushi Tanaka
-
Publication number: 20200109502Abstract: A sewing machine guiding tool includes a presser foot, a holder and a gauge. The presser foot includes a bottom wall and a rear support. The bottom wall is formed with a needle-passing hole and with a slit extending from the needle-passing hole to the front end of the bottom wall. The rear support is connected to the rear end of the bottom wall. The holder, attached to a presser bar of the sewing machine, holds the presser foot pivotally about a horizontal axis. The gauge, supported by the rear support to be slidable in parallel to the horizontal axis, includes a ruler plate and a guide portion. The ruler plate has a surface marked with a scale. The guide portion extends from the ruler plate. The ruler plate is disposed above the bottom wall with its surface inclined to become higher as proceeding rearward.Type: ApplicationFiled: September 30, 2019Publication date: April 9, 2020Inventors: Nancy L. Zieman, Yuji Kawasaki, Chihiro Iwasaki
-
Patent number: 10301753Abstract: A presser foot for a sewing machine has a bottom wall, first and second side walls, and a guard piece. The bottom wall has front and rear ends. In addition, the bottom wall is provided with a needle-passing hole and a first slit extending from the needle-passing hole to the front end. The first side wall and the second side wall are formed integral with the bottom wall and spaced apart from each other in a width direction of the bottom wall. The guard piece is attached to the first side wall to cover the gap between the first side wall and the second side wall from above. In plan view, the guard piece is spaced from the needle-passing hole and does not overlap with the needle-passing hole. The guard piece and the second side wall are spaced apart from each other by a second slit.Type: GrantFiled: October 18, 2017Date of Patent: May 28, 2019Assignee: CLOVER MFG. CO., LTD.Inventors: Chihiro Iwasaki, Yuji Kawasaki
-
Publication number: 20190112738Abstract: A presser foot for a sewing machine has a bottom wall, first and second side walls, and a guard piece. The bottom wall has front and rear ends. In addition, the bottom wall is provided with a needle-passing hole and a first slit extending from the needle-passing hole to the front end. The first side wall and the second side wall are formed integral with the bottom wall and spaced apart from each other in a width direction of the bottom wall. The guard piece is attached to the first side wall to cover the gap between the first side wall and the second side wall from above. In plan view, the guard piece is spaced from the needle-passing hole and does not overlap with the needle-passing hole. The guard piece and the second side wall are spaced apart from each other by a second slit.Type: ApplicationFiled: October 18, 2017Publication date: April 18, 2019Inventors: Chihiro IWASAKI, Yuji KAWASAKI
-
Publication number: 20190104794Abstract: A seam ripper includes a metal blade member, a handle and a slider. The blade member is supported by the handle and made of a shaft and a blade part at an end of the shaft. The slider causes the blade member to move between a retracted position and an advanced position. The shaft is housed in the handle at the retracted position. The blade part and at least a portion of the shaft are outside the handle at the advanced position. The blade part includes a cutting blade flanked by a needle portion and a ball-shaped portion. When the blade member is at the retracted position, the entirety of the needle portion is housed in the handle, and a portion of the cutting blade is exposed to the outside of the handle.Type: ApplicationFiled: September 18, 2018Publication date: April 11, 2019Inventors: Chihiro IWASAKI, Atsushi TANAKA
-
Publication number: 20170334042Abstract: A clip for sewing includes lower and upper members that are pivotable to each other about a given axis. The lower member has a first prong portion and a first handling portion opposite to the first prong portion. The upper member has a second prong portion and a second handling portion opposite to the second prong portion. A bias member urges the lower and the upper members about the axis so that the first prong portion and the second prong portion are drawn to each other to shut. A plurality of projection/recess pairs are provided, each pair having ng a recess and a corresponding projection to be received in the recess. In each of the projection/recess pairs, the recess is provided at one of the first and second prong portions, while the corresponding projection is provided at the other of them.Type: ApplicationFiled: May 2, 2017Publication date: November 23, 2017Inventor: Chihiro IWASAKI
-
Publication number: 20170144797Abstract: A metal parts attracting holder is made up of a case, a cover and a permanent magnet. The case includes a bottom wall, a top wall and a side wall connecting the bottom wall and the top wall to each other. The cover is removably attached to the case. The permanent magnet is provided within the case. The top wall of the case has an attracting surface to which metal parts are attached by the magnetic force of the permanent magnet. The cover is formed with a recess with which the bottom wall is engaged.Type: ApplicationFiled: November 21, 2016Publication date: May 25, 2017Inventors: Yuji KAWASAKI, Chihiro IWASAKI
-
Patent number: 9611574Abstract: A sewing tool holder includes a base and a plurality of of projections. The base has an obverse face and a reverse face spaced from each other in a thickness direction of the base. The plurality of projections are supported on the obverse face of the base via a common connecting portion attached to the base. Each of the plurality of projections has an upper or front end and a root or lower end that is connected to the common connecting portion.Type: GrantFiled: September 3, 2015Date of Patent: April 4, 2017Assignee: CLOVER MFG. CO., LTD.Inventor: Chihiro Iwasaki
-
Patent number: 9441320Abstract: A cloth presser includes a grip portion, a first press end and a second press end. The grip portion is elongated, having a straight longitudinal axis. The first press end and the second press end are spaced apart from each other, with the grip portion intervening between the first press end and the second press end. The first press end is configured to make point contact with an object such as a piece of cloth, and the second press end is configured to make surface contact with the object.Type: GrantFiled: October 9, 2014Date of Patent: September 13, 2016Assignee: CLOVER MFG. CO., LTD.Inventors: Kumiko Nitta, Chihiro Iwasaki
-
Patent number: D758176Type: GrantFiled: March 19, 2015Date of Patent: June 7, 2016Assignee: CLOVER MFG. CO., LTD.Inventors: Chihiro Iwasaki, Atsuko Okuma
-
Patent number: D762036Type: GrantFiled: April 29, 2015Date of Patent: July 19, 2016Assignee: CLOVER MFG. CO., LTD.Inventors: Chihiro Iwasaki, Atsushi Tanaka, Juho Viitasalo
-
Patent number: D779346Type: GrantFiled: November 11, 2015Date of Patent: February 21, 2017Assignee: CLOVER MFG. CO., LTD.Inventors: Chihiro Iwasaki, Atsushi Tanaka
-
Patent number: D789810Type: GrantFiled: September 25, 2015Date of Patent: June 20, 2017Assignee: CLOVER MFG. CO., LTD.Inventors: Joan Hawley, Chihiro Iwasaki
-
Patent number: D821086Type: GrantFiled: November 3, 2016Date of Patent: June 26, 2018Assignee: CLOVER MFG. CO., LTD.Inventor: Chihiro Iwasaki
-
Patent number: D877487Type: GrantFiled: October 26, 2017Date of Patent: March 10, 2020Assignee: CLOVER MFG. CO., LTD.Inventors: Chihiro Iwasaki, Atsushi Tanaka
-
Patent number: D893325Type: GrantFiled: March 29, 2019Date of Patent: August 18, 2020Assignee: CLOVER MFG. CO., LTD.Inventors: Nancy L. Zieman, Yuji Kawasaki, Chihiro Iwasaki