Ricoh Company, Ltd.

Goo Chemical Company, Ltd.

Mitsuru Naruse

Minoru Hakiri

Masayasu Nonogaki

Keita Katoh

Kazukiyo Nagai

Shin Hasegawa

Yasuo Suzuki

Akihiko Matsuyama

Yuusuke Koizuka

Hitoshi Iwatsuki

Yasuyuki Yamashita

Hiroyuki Fushimi

Mitsunobu Morita

Nozomu Tamoto

Kunio Hayakawa

Yasutomo Mori

Yoshihiro Norikane

Keiko Osaka

Masaki Watanabe

Naoya Morohoshi

Shigeyuki Harada

Mariko Kojima

Masayuki Fukuoka

Akira Saito

Sohichiroh Iida

Kazumi Ohtaki

Toshiyuki Mutoh

Shigenori Yaguchi

Masafumi Torii

Yasutomo Aman

Teruki Kusahara

Yoshikazu Kaneko

Kiichi Kamoda

Takeshi Kajikawa

Shinzo Higuchi

Toshiyuki Iseki

Nobuyuki Sakamoto

Yosuke Matsuoka

Masatomo Takahashi

Yunsheng Sun

Satoshi Ogawa

Hiroshi Iwata

Takeo Yamaguchi

Norihiko Inaba

Takeshi Akimoto

Motoo Tasaka

Toshiaki Ikeda

Tomohisa Kakuda

Kunihiko Hada

Shinobu Miyauchi

Takuya Furuta

Masato Matsumura

Shinn Hasegawa

Provided is a three-dimensional object formation method for forming a three-dimensional object by at least repeating: forming a powder material layer using a powder material for three-dimensional object formation containing a base material coated with an organic material; and hardening a predetermined region of the powder material layer by delivering a hardening liquid to the powder material layer formed in the formation of a powder material layer, where the hardening liquid contains a cross-linking agent cross-linkable with the organic material.

Formation method of three-dimensional object with metal and/or ceramic particles and thin organic resin

A fiber aggregation contains fiber containing a thermoplastic resin, each of the fiber being mutually joined and aligned.

Fiber aggregation, short fiber and method of manufacturing the same, and film and method of manufacturing the same

A powder for solid freeform fabrication includes a first resin particle and a second resin particle, wherein MFRis greater than MFRand a ratio of MFRto MFRis from 2 to 5, where MFRrepresents a melt mass-flow rate (MFR) of the first resin particle and MFRrepresents a melt mass-flow rate of the second resin particle.

Powder for solid freeform fabrication and method of manufacturing solid freeform fabrication object

A resin powder contains a resin, wherein the proportion of fine powder having a number diameter of 40 percent or less of a mean number diameter Mn of the resin powder is 30 percent or less in the resin powder.

Resin powder, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

A particle for solid freeform fabrication having a columnar form has end surfaces and a side surface, wherein one of the end surfaces partially covers the side surface.

Particle for solid freeform fabrication, powder for solid freeform fabrication, device for manufacturing solid freeform fabrication object, method of manufacturing solid freeform fabrication object, and particle

Powder material for three-dimensional object formation, hardening liquid and three-dimensional object formation kit, and formation method and formation apparatus of three-dimensional object

Provided is a liquid material for forming a three-dimensional object. The liquid material is adapted to harden a powder material for forming a three-dimensional object containing an organic material. The liquid material contains a solvent and a cross-linking agent. A dynamic contact angle of the liquid material over a film made of the organic material is from 20&#xb0; to 80&#xb0;.

Liquid material for forming three-dimensional object and material set for forming three-dimensional object, and three-dimensional object producing method

A powder material for three-dimensional modeling includes a base particle and a resin including a first water soluble resin and a second water soluble resin, wherein a first aqueous solution of the first water soluble resin having a concentration of two percent by mass has a thermally reversible sol-gel phase transition and is gelated at temperatures higher than a first phase transition temperature of the first aqueous solution.

Powder material for three-dimensional modeling, material set for 3D modeling, method of manufacturing three-dimensional object, device for manufacturing three-dimensional object, and three-dimensional object

A powder material for three-dimensional modeling includes a base particle and a resin covering the base particle, wherein the resin has a first absorption peak in the range of from 1,141 cmto 1,145 cmand a second absorption peak in the range of from 1,089 cmto 1,093 cmin an infrared absorption spectrum and the intensity ratio of the first absorption peak to the second absorption peak is from 0.40 to 0.70.

Powder material for three dimensional modeling, kit for three dimensional modeling, green body for three dimensional modeling, method of manufacturing three dimensional object, method of manufacturing three-dimensional green body, device for manufacturing three-dimensional object, and device for manufacturing three-dimensional green body

A powder material for three-dimensional modeling includes a base particle and a coverage film including an organic material. The coverage film covers the base particle. The powder material is used for three dimensional modeling and when the coverage film is dissolved in a solvent to prepare a solution and the solution is formed into a coated film on a smooth surface, the coated film has a wetting tension of from 22 mN/m to 28 mN/m.

Powder material for three-dimensional modeling, kit for three-dimensional modeling, device for manufacturing three-dimensional object, and method of manufacturing three-dimensional object

An inkjet recording ink, including: water; a water-soluble organic solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer contains a structural unit represented by the following General Formula (1) and a structural unit represented by the following General Formula (2): where R1 denotes a hydrogen atom or a methyl group; Mdenotes an alkali metal ion, an organic amine ion, or a hydrogen ion; half or more of Min the copolymer is the alkali metal ion or the organic amine ion, the remainder of Mis the hydrogen ion; n and m each denote an integer of 0 to 6, provided that both of n and m are not 0; and a block of (CHO) and a block of (CHO) may be exchanged with each other, where R2 denotes a hydrogen atom or a methyl group. 

Inkjet recording ink, ink cartridge, inkjet recording method, inkjet recording device and ink recorded matter

A powder for 3D modeling includes a base particle and a resin having a functional group represented by the following Chemical formula 1, where Arepresents O or NH and R, R, and Reach, independently represent CH, CH, CH, or CH. The base particle is covered with the resin.

Powder for 3D modeling, set for 3D modeling, method of manufacturing 3D object, and device for manufacturing 3D object

An inkjet recording ink, including: water; a water-soluble solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer includes a structural unit represented by the following general formula (1) and a structural unit represented by the following general formula (2): wherein, in the general formula (1), Rrepresents either of a hydrogen atom and a methyl group; and Mrepresents any of an alkali metal ion, an organic amine ion and a hydrogen ion, one-half or more of the Min the copolymer is an alkali metal ion or an organic amine, and the remainder is a hydrogen ion; wherein, in the general formula (2), Rrepresents either of a hydrogen atom and a methyl group.

Inkjet recording ink and ink cartridge using the ink, inkjet recording apparatus, inkjet recording method and ink recording matter

An ink composition contains (a) a pigment represented by chemical formula 1a or chemical formula 1b, (b) a polymer having a structure unit having a diphosphonic acid group and represented by Chemical formula 2, (c) a hydrosoluble solvent, and (d) water.   

Ink composition, ink cartridge, ink recording device, and recorded matter

An inkjet ink is provided. The inkjet ink includes water; a penetrant, a pigment, and a polymer compound. The polymer compound includes a unit (A) including a functional group having the below-mentioned formula (1) or (2), and another unit (B) including a carboxyl group. The unit (A) is included in the polymer compound in an amount of from 30% to 90% by weight based on the total weight of the polymer compound. 

Inkjet ink, ink cartridge containing the inkjet ink, inkjet recording method using the inkjet ink, inkjet recording apparatus using the ink cartridge, and print formed by the inkjet ink

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Shizuoka, Japan

Mitsuru Naruse