Canon Kabushiki Kaisha

Fuji Chemical Company, Limited

Motokazu Kobayashi

Makoto Kubota

Yoshinori Kotani

Fumio Uchida

Chiemi Shimizu

Shinji Eritate

Kenji Maeda

Hiroyuki Tanaka

Tetsuro Fukui

Yoshihiro Ohashi

Keiko Abe

Masao Suzuki

Teigo Sakakibara

Kenji Kagami

Kazunori Ueno

Toshiya Yuasa

Minako Nakasu

Takeshi Honma

Katsuya Nishino

Shiori Yonezawa

Naoyuki Koketsu

Takehiko Ooi

Kaori Kawa

Kenichi Iida

Hiroshi Fukumoto

Takashi Kai

Kohzoh Arahara

Kenichi Matsumoto

Noboru Tohyama

Hisao Suzuki

Hiroto Numazawa

Masayuki Yamada

Masahiko Higuma

Miki Tamura

Yuko Sato

Tetsuya Higuchi

Zuyi Zhang

Osamu Hoshino

Ryo Natori

Toshio Tomiyoshi

Yoshiyuki Shino

Youichi Fukaya

Kazumi Iwashita

Satoshi Yamabi

Masako Ichioka

Tetsushi Yamamoto

Hiromi Tanaka

Toshihiko Sugimoto

Takehiko Ohi

Iko Ito

Shinichirou Yoshikawa

Yoshio Kanzaki

To provide a method for producing a particle that can suppress non-specific adsorption without using BSA. A method for producing a particle, including: a first step of mixing a radically polymerizable monomer, an organic silane compound having a silicon atom to which an alkoxy group is bonded and having radical polymerizability, a radical polymerization initiator, a water-soluble polymer, and an aqueous medium to prepare an emulsion; and a second step of adding a specific reactive compound after the first step.

Particle and method for producing particle

A sodium niobate-barium titanate-based coating liquid composition including: (a) a sol-gel raw material containing (i) a niobium component, such as a niobium alkoxide, (ii) a sodium component, such as a sodium alkoxide, (iii) a titanium component, such as a titanium alkoxide, and (iv) a barium component, such as a barium alkoxide; and (b) a compound including at least one kind selected from the group consisting of a &#x3b2;-ketoester compound and a &#x3b2;-diketone compound represented by the following formula (1): 

Coating liquid composition for forming piezoelectric film, oriented piezoelectric film, and liquid ejection head

An oriented piezoelectric film comprises perovskite type crystals expressed by formula (1) shown below:(1&#x2212;)NaNbO-BaTiO(0.01&#x2264;&#x2264;0.40)&#x2003;&#x2003;(1)and (111) oriented in pseudocubic crystal notation.

Oriented piezoelectric film, method of manufacturing the same and piezoelectric element

Use of a barium titanate based coating liquid composition comprising: 

Coating liquid composition for orientational piezoelectric film, orientational piezoelectric film and liquid ejection head

Provided is a coating liquid for forming a piezoelectric thin film containing lead zirconate titanate, the coating liquid including a complex precursor containing at least three kinds of metal elements of Pb, Ti, and Zr, the coating liquid being free from an exothermic peak at a temperature of 450&#xb0; C. or more, or having a heat generation amount at a temperature of from 400&#xb0; C. to 450&#xb0; C., which is larger than a heat generation amount at a temperature of from 450&#xb0; C. to 500&#xb0; C., in differential thermal analysis of the coating liquid.

Coating liquid for forming piezoelectric thin film, method of producing coating liquid for forming piezoelectric thin film, piezoelectric thin film, method of manufacturing piezoelectric thin film, and liquid ejection head

A photocurable ink contains a polymerizable compound and a photopolymerization initiator, and this ink contains a low boiling point solvent having a boiling point of 40&#xb0; C. to 120&#xb0; C. at one atmospheric pressure and at least one particle having a surface on which an unsaturated hydrocarbon group is provided.

Photocurable ink, ink container, and image forming method

Provided is use of an oriented piezoelectric film including of a perovskite-type crystal represented by the following general formula (1): BaCaTiZrO(0&#x2264;x&#x2264;0.2, 0&#x2264;y&#x2264;0.2) (1). The oriented piezoelectric film is formed on an oriented underlayer oriented in a (111) plane and contains first crystals oriented in the (111) plane with respect to a film surface and randomly oriented second crystal grains. The first crystal grains have an average grain diameter of from 300 nm to 600 nm and the second crystal grains have an average grain diameter of from 50 nm to 200 nm.

Oriented piezoelectric film and method of manufacturing same, and liquid ejection head

An oriented piezoelectric film, wherein a crystal forming the oriented piezoelectric film, is a perovskite type crystal of the general formula of BaCaTiZrO(0&#x2264;x&#x2264;0.2, and 0&#x2264;y&#x2264;0.2), and the oriented piezoelectric film has (111) orientation according to a pseudocubic crystal notation.

Oriented piezoelectric film, method for producing the oriented piezoelectric film, and liquid dispensing head

A film forming method includes forming a film on a substrate, in which the film includes first regions, second regions, and third regions, the first regions, the second regions, and the third regions being defined by a refractive index and a region size and being present in a mixed manner in a cross section parallel to a thickness direction, the first regions and the second regions have a refractive index at least 0.4 higher than the third regions, the second regions are formed of high-refractive-index particles having an average particle size of 10 nm or more and 100 nm or less, the first regions are formed of the high-refractive-index particles that have been aggregated, the first regions having an equivalent circular diameter of 250 nm or more, and the third regions have an equivalent circular diameter of more than 100 nm.

Film forming method, image forming method, film, and ink composition

Disclosed is a method of manufacturing a piezoelectric substrate, the method including: forming an intermediate layer of Ti and a lower electrode of Pt oriented in a (111) axis direction on a substrate without heating the substrate; applying a coating liquid for forming an orientation control layer made of lead titanate onto the lower electrode; drying the coating liquid at a predetermined temperature to form an orientation control layer precursor made of lead titanate; applying a coating liquid for forming a piezoelectric thin film made of lead zirconate titanate; drying the coating liquid at a predetermined temperature to form a piezoelectric precursor made of a lead zirconate titanate precursor; and collectively firing the orientation control layer precursor and the piezoelectric precursor to crystallize both the precursors, to thereby form a piezoelectric thin film made of lead zirconate titanate preferentially oriented in a (110) plane.

Piezoelectric substrate and method of manufacturing the piezoelectric substrate, and liquid ejection head

A photocurable ink containing a first liquid containing a polymerizable compound and a photopolymerization initiator, and a second liquid that is incompatible with the first liquid, in which droplets formed by the second liquid are dispersed in the first liquid, wherein the photocurable ink contains first particles and second particles having higher hydrophilicity than that of the first particles, wherein the first particles are adsorbed on an interface between the first liquid and the second liquid, and the second particles are present in the second liquid.

A piezoelectric actuator has a ground substrate layer, an intermediate layer containing at least one of Ti and TiOon the ground substrate layer, an electrode layer containing Pt on the intermediate layer, and a piezoelectric layer containing lead zirconate titanate on the electrode layer, in which the lead zirconate titanate contained in the piezoelectric layer is preferentially oriented in the (100), (001), or (110) direction, the Pt contained in the electrode layer is preferentially oriented in the (111) direction, and the half width of the rocking curve in the (111) plane of the Pt contained in the electrode layer in X-ray diffraction is 1&#xb0; or more.

Piezoelectric actuator, method for manufacturing same, and liquid discharge head

A photo-curable ink contains an oil-based liquid containing a polymerizable compound and a photopolymerization initiator, and an aqueous liquid containing water. When the photo-curable ink is stirred at a rotational speed of 15000 rpm or more for 3 minutes and then allowed to stand at 25&#xb0; C. for one hour or more, droplets formed with the aqueous liquid are dispersed in the oil-based liquid without layer separation between the oil-based liquid and the aqueous liquid.

Photo-curable ink, ink cartridge, and image forming method

A piezoelectric thin film is manufactured by sequentially executing: a step of coating a substrate by applying a coating solution containing an organic solvent and a piezoelectric thin film precursor to form a coating layer; a step of evaporating the organic solvent from the coating layer in a windless environment to obtain a dried coating layer containing the piezoelectric thin film precursor; and a step of heating the dried coating layer to form a piezoelectric thin film from the dried coating layer containing the piezoelectric thin film precursor.

Piezoelectric thin film, method of manufacturing the same, piezoelectric thin film manufacturing apparatus and liquid ejection head

Growing community of inventors

Yokohama, Japan

Motokazu Kobayashi