公开(公告)号：US11639400B2

公开(公告)日：2023-05-02

申请号：US16546818

申请日：2019-08-21

申请人： RICOH COMPANY, LTD.

发明人： Takashi Matsumura ,  Tatsuya Niimi ,  Takuya Saito

IPC分类号： B29C64/188 ,  C08F20/06 ,  B29C64/264 ,  B29C64/129 ,  B33Y10/00 ,  B33Y70/00

摘要： An active energy ray curable liquid contains an unsaturated acid monomer and a metal salt.

公开(公告)号：US20220389179A1

公开(公告)日：2022-12-08

申请号：US17755417

申请日：2020-11-26

申请人： Ricoh Company, Ltd.

发明人： Takashi Matsumura ,  Tatsuya Niimi ,  Takuya Saito

IPC分类号： C08J7/04 ,  C08J3/075 ,  C08F30/08

摘要： A hydrogel liquid precursor contains water and one of a compound and a salt of the compound represented by R1CH═CR2X, where X represents a carboxyl group, carboxylate group, sulfo group, or sulfonate group, R1 and R2 each independently represent hydrogen atoms, alkyl groups, aryl groups, carboxyl groups, or alkylcarboxy groups.

公开(公告)号：US11541594B2

公开(公告)日：2023-01-03

申请号：US16601846

申请日：2019-10-15

申请人： RICOH COMPANY, LTD.

发明人： Tatsuya Niimi ,  Takashi Matsumura ,  Takuya Saito

IPC分类号： B29C64/106 ,  C08K3/34 ,  C08L33/26 ,  A61B8/00

摘要： Provided is an ultrasonic propagation member used in contact with a test target, wherein a surface of the ultrasonic propagation member contacting the test target has a shape conforming to a surface of the test target, or an ultrasonic propagation member having at least two surfaces, wherein hardness of one surface and hardness of another surface are different.

公开(公告)号：US11904058B2

公开(公告)日：2024-02-20

申请号：US16557570

申请日：2019-08-30

申请人： RICOH COMPANY, LTD.

发明人： Hiroshi Iwata ,  Tatsuya Niimi ,  Yoshihiro Norikane ,  Takashi Matsumura

IPC分类号： A61L15/60 ,  B33Y70/00 ,  C08K5/05 ,  B29C64/112 ,  C08K5/053 ,  B33Y80/00 ,  G09B23/30 ,  B33Y10/00 ,  B29L31/00 ,  B29C64/40

CPC分类号： A61L15/60 ,  B29C64/112 ,  B33Y70/00 ,  B33Y80/00 ,  C08K5/05 ,  C08K5/053 ,  G09B23/30 ,  B29C64/40 ,  B29L2031/7532 ,  B33Y10/00 ,  C08K5/053 ,  C08L33/26 ,  C08K5/05 ,  C08L33/26 ,  C08K3/346 ,  C08L33/26

摘要： A hydrogel object includes a polymer and water, wherein the rate of mass loss is not greater than 20 percent by mass when the hydrogel object is left undone for one week at 25 degrees C. and relative humidity of 50 percent.

公开(公告)号：US11597139B2

公开(公告)日：2023-03-07

申请号：US16797670

申请日：2020-02-21

申请人： RICOH COMPANY, LTD.

发明人： Tatsuya Niimi ,  Takashi Matsumura ,  Takuya Saito

IPC分类号： B29C64/112 ,  B29C64/264 ,  B29C64/30 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B33Y40/20 ,  B33Y70/10

摘要： A solid freeform fabrication object includes a plurality of parts formed of hydrogels having respective physical properties, wherein the hydrogels having respective physical properties, each having a moisture content of 70 percent by mass or greater, wherein a solvent concentration difference between the hydrogel constituting adjacent parts of the plurality of parts is 5 percent by mass or less.

公开(公告)号：US11517769B2

公开(公告)日：2022-12-06

申请号：US16866712

申请日：2020-05-05

申请人： RICOH COMPANY, LTD. ,  NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM

发明人： Tatsuya Niimi ,  Takashi Matsumura ,  Takuya Saito ,  Takeshi Kamomae

IPC分类号： A61N5/10 ,  G21K5/04

摘要： Provided is a neutron beam transmission adjusting device including a neutron beam transmission unit including a neutron reactant and capable of modulating an energy and/or a flux of a neutron beam transmitted through the neutron beam transmission unit.