公开(公告)号：US20220403189A1

公开(公告)日：2022-12-22

申请号：US17755367

申请日：2020-07-27

Applicant: Tatsuki YAMAGUCHI ,  Soh Noguchi ,  Mitsunobu Morita ,  Takashi Okada

Inventor： Tatsuki YAMAGUCHI ,  Soh Noguchi ,  Mitsunobu Morita ,  Takashi Okada

IPC: C09D11/30 ,  C09D133/04

Abstract: An active-energy-ray-curable composition includes a polymerizable dendritically-branched compound and a polyester resin containing a polymerizable unsaturated bond.

公开(公告)号：US11084940B2

公开(公告)日：2021-08-10

申请号：US16441796

申请日：2019-06-14

Applicant: Tatsuki Yamaguchi ,  Masahide Kobayashi ,  Mitsunobu Morita ,  Takashi Okada ,  Soh Noguchi ,  Takenori Suenaga

Inventor： Tatsuki Yamaguchi ,  Masahide Kobayashi ,  Mitsunobu Morita ,  Takashi Okada ,  Soh Noguchi ,  Takenori Suenaga

IPC: C09D4/00 ,  C08F220/58 ,  C09D11/30 ,  C09D11/101 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/112 ,  B29C64/255 ,  B41M5/00 ,  B33Y30/00 ,  B29K33/00

Abstract: Provided is a composition including an acrylamide compound having a molecular weight of 150 or greater but 250 or less (A1), a polyfunctional polymerizable compound including an alkylene oxide group (A2), and a polyfunctional polymerizable compound (A3) different from the polyfunctional polymerizable compound (A2).

公开(公告)号：US20200299425A1

公开(公告)日：2020-09-24

申请号：US16822099

申请日：2020-03-18

Applicant: Masahide KOBAYASHI ,  Mitsunobu MORITA ,  Takashi OKADA ,  Takenori SUENAGA ,  Soh NOGUCHI ,  Tatsuki YAMAGUCHI

Inventor： Masahide KOBAYASHI ,  Mitsunobu MORITA ,  Takashi OKADA ,  Takenori SUENAGA ,  Soh NOGUCHI ,  Tatsuki YAMAGUCHI

IPC: C08F22/38 ,  C09D11/101 ,  C08F20/28 ,  C08F2/48 ,  A45D31/00 ,  C09D11/30

Abstract: An active energy ray curable composition contains an acrylamide compound A1 represented by the following Chemical formula 1 or the following Chemical formula 2; a multi-functional polymerizable compound B1 having an SI value of 3 or less in a skin sensitivity test; a polymerization initiator C1 having no maximum absorption peak in a wavelength range of from 365 to 405 nm; and a hydrogen donor D,

公开(公告)号：US20170153574A1

公开(公告)日：2017-06-01

申请号：US15340647

申请日：2016-11-01

Applicant: Satoshi KOJIMA ,  Satoshi TAKAHASHI ,  Tatsuru MORITANI ,  Shosuke AOAI ,  Tatsuki YAMAGUCHI

Inventor： Satoshi KOJIMA ,  Satoshi TAKAHASHI ,  Tatsuru MORITANI ,  Shosuke AOAI ,  Tatsuki YAMAGUCHI

IPC: G03G9/00

CPC classification number: G03G15/0865 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/087 ,  G03G9/09725 ,  G03G15/08

Abstract: A toner includes a toner base particle including a binder resin; a release agent; and an inorganic fine particle, and an external additive. The inorganic fine particle is silica having an average abundance ratio at the surface of the toner base particle of from 70% to 90%. The toner base particle has a BET specific surface area of from 1.0 m2/g to 2.5 m2/g after the external additive is removed from the toner.

公开(公告)号：US20230088754A1

公开(公告)日：2023-03-23

申请号：US17929765

申请日：2022-09-06

Applicant: Hikaru ISHII ,  Stoshi Kojima ,  Yuusuke Fujita ,  Tatsuki Yamaguchi ,  Hiroki Kobayashi ,  Shunsuke Kobayashi

Inventor： Hikaru ISHII ,  Stoshi Kojima ,  Yuusuke Fujita ,  Tatsuki Yamaguchi ,  Hiroki Kobayashi ,  Shunsuke Kobayashi

IPC: C09D11/107 ,  C08F220/34

Abstract: An active-energy-ray-curable composition includes: an adduct of trifunctional urethane acrylate; and a heterocyclic monofunctional monomer. A proportion of the heterocyclic monofunctional monomer in the active-energy-ray-curable composition is 10% by mass or more but 60% by mass or less.

公开(公告)号：US10829631B2

公开(公告)日：2020-11-10

申请号：US16458464

申请日：2019-07-01

Applicant: Takao Hiraoka ,  Mitsunobu Morita ,  Takashi Okada ,  Soh Noguchi ,  Tatsuki Yamaguchi ,  Masahide Kobayashi ,  Takenori Suenaga

Inventor： Takao Hiraoka ,  Mitsunobu Morita ,  Takashi Okada ,  Soh Noguchi ,  Tatsuki Yamaguchi ,  Masahide Kobayashi ,  Takenori Suenaga

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C08L33/26 ,  C08K5/00 ,  C09D11/38 ,  C08K5/3462 ,  B41J11/00

Abstract: A composition contains an acrylamide compound A1 having an ester structure and a polymerization initiator B1 having a molecular weight of 800 or more.

公开(公告)号：US20200308425A1

公开(公告)日：2020-10-01

申请号：US16837153

申请日：2020-04-01

Applicant: Soh NOGUCHI ,  Mitsunobu MORITA ,  Takashi OKADA ,  Tatsuki YAMAGUCHI ,  Koji ARIMITSU

Inventor： Soh NOGUCHI ,  Mitsunobu MORITA ,  Takashi OKADA ,  Tatsuki YAMAGUCHI ,  Koji ARIMITSU

IPC: C09D11/101 ,  C09D11/38 ,  B33Y70/00

Abstract: To provide an active-energy-ray-curable composition including a compound represented by General Formula (I) below: where in the General Formula (I), R is hydrogen or a methyl group; A is a structure expressed by one selected from the group consisting of Structural Formulas (II) to (VII) below, each of which may have a substituent such as an alkyl group or an alkoxy group, or both; j and k in the Structural Formulas (VI) and (VII) are an integer of 0 or more; X denotes a substituent including a heteroatom; n is an integer of 0 or more, m is an integer of 1 or more, and n+m is 3 or more, or n is an integer of 0 and m is an integer of 2; and wavy lines in the Structural Formulas (II) to (VII) each independently denote a bond with X or a (meth)acryloyl group (H2C═CR—C(═O)—):

公开(公告)号：US10451989B2

公开(公告)日：2019-10-22

申请号：US16119653

申请日：2018-08-31

Applicant: Satoshi Kojima ,  Satoshi Takahashi ,  Tatsuru Moritani ,  Shosuke Aoai ,  Tatsuki Yamaguchi

Inventor： Satoshi Kojima ,  Satoshi Takahashi ,  Tatsuru Moritani ,  Shosuke Aoai ,  Tatsuki Yamaguchi

IPC: G03G9/08 ,  G03G9/097 ,  G03G9/087 ,  G03G15/08

Abstract: Provided is a toner including toner base particles and an external additive, wherein each of the toner base particles includes a binder resin, a release agent, and silica, an average abundance ratio (Xsurf) of the silica on a region adjacent to a surface of the toner base particle is from 70% through 90%, and a projected area average value S(180) per particle of the toner when the toner is heated to 180° C. and a projected area average value S(30) per particle of the toner when the toner is 30° C. satisfy Formula (1) below, 1.4≤S(180)/S(30)≤1.7  Formula (1).

公开(公告)号：US09971261B2

公开(公告)日：2018-05-15

申请号：US15423187

申请日：2017-02-02

Applicant: Satoshi Takahashi ,  Yoshihiro Moriya ,  Ryota Inoue ,  Masahiko Ishikawa ,  Tatsuki Yamaguchi ,  Satoshi Kojima

Inventor： Satoshi Takahashi ,  Yoshihiro Moriya ,  Ryota Inoue ,  Masahiko Ishikawa ,  Tatsuki Yamaguchi ,  Satoshi Kojima

IPC: G03G9/08 ,  G03G9/09 ,  G03G9/087

CPC classification number: G03G9/0827 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/0904 ,  G03G9/0918

Abstract: An electrostatic-image developing toner including at least a binder resin; a colorant; and a release agent, wherein an average circularity of particles having a particle diameter in a range of 0.79 times or more but less than 1.15 times as large as a most frequent diameter in a number particle size distribution of the toner is within a range of 1.010 times or more but less than 1.020 times as high as an average circularity of particles having a particle diameter of 1.15 times or more as large as the most frequent diameter.

公开(公告)号：US20180085314A1

公开(公告)日：2018-03-29

申请号：US15704106

申请日：2017-09-14

Applicant: Tadahiko MORINAGA ,  Tatsuru MORITANI ,  Tatsuki YAMAGUCHI ,  Masaru OHGAKI ,  Shinji AOKI ,  Yuichi SATO

Inventor： Tadahiko MORINAGA ,  Tatsuru MORITANI ,  Tatsuki YAMAGUCHI ,  Masaru OHGAKI ,  Shinji AOKI ,  Yuichi SATO

IPC: A61K9/16 ,  C08G63/06

CPC classification number: A61K9/1647 ,  A61K9/5153 ,  A61K9/5192 ,  B01J2/04 ,  B01J2/18 ,  B29B9/10 ,  B29B9/12 ,  B29B2009/125 ,  C08G63/06

Abstract: A particulate poly(lactic-co-glycolic) acid (PLGA) is provided. The particulate PLGA comprises a poly(lactic-co-glycolic) acid (PLGA), and has an average volume-based particle diameter of 80 nm or less and a relative span factor (R.S.F.) satisfying the following formula (1): 0