Nec Corporation

Teac Corporation

Konica Minolta, Inc.

Nippon Paper Industries Co., Ltd.

Minolta Company, Ltd.

Konica Minolta Opto, Inc.

Tdk Corporation

Telefonaktiebolaget Lm Ericsson (Publ)

Kao Corporation

Konica Minolta Advanced Layers, Inc.

Kazuhiko Inoue

Masatoshi Iji

Kenichi Shimura

Takeshi Nakatani

Yasumasa Sawai

Yusuke Tada

Shin Serizawa

Yusuke Imai

Yoshio Hirose

Noboru Yoshida

Atsuo Masui

Jiro Iriyama

Yukihiro Kiuchi

Tsunenori Yanagisawa

Daisuke Kawasaki

Takashi Watanabe

Midori Shimura

Kohei Wataru

Makoto Soyama

Atsushi Matsuura

Hidetoshi Kabasawa

Hideki Nagata

Yasushi Noda

Masashi Gotoh

Makihiro Otohata

Noriyuki Kawano

Fumio Nagase

Katsuhiro Takamoto

Yasuhide Yamashita

Shinya Sudo

Masahiro Terada

Masaru Uno

Takashi Ohta

Kazutomo Imi

Iwao Adachi

Sadanobu Imamura

Hiroyoshi Suzuki

Norio Maeda

Kasumi Nishigaya

Osamu Ohhata

Shintarou Koike

Syukichi Tanaka

Satoshi Onishi

Joachim Sachs

Michael Meyer

Hitoshi Ishikawa

Takeshi Fujii

Hiroshi Tsuyuguchi

Takahiro Sakaguchi

Takehiro Noguchi

Per Johan Beming

Yoshiaki Sakai

Hideaki Sasaki

Bela Rathonyi

Kazuaki Matsumoto

Tatsuji Numata

Ryuichi Kasahara

Tohru Miura

Akira Takenaka

Yasuhiro Hidaka

Tetsuya Kajita

Mathias Johansson

Kazuo Yokota

Shinsaku Saitho

Hiroaki Kishimoto

Shunta Takimoto

Suguru Tamai

Christiaan Roobol

Miya Enami

Michiaki Nagai

Tsutomu Kawasaki

Toshio Ihana

Kazuhiro Fujiwara

Erik Sch&ouml;n

Atsushi Abe

Takashi Ashida

Shinji Satou

Midori Yamashiro

Carboxymethylated cellulose nanofibers in which the degree of carboxymethyl substitution is higher than 0.30 and no more than 0.60, the cellulose type I crystallinity is 60% or higher, and the transmittance of light having a wavelength of 660 nm when the carboxymethylated celluose nanofibers are made into an aqueous dispersion having a solids fraction of 1% (w/v) is 60% or higher.

Carboxymethylated cellulose nanofibers

A powder that contains carboxymethylated cellulose nanofibers, said carboxymethylated cellulose nanofibers having a degree of carboxymethyl substitution of 0.50 or less and a cellulose type I crystallinity of 60% or more, and has a median diameter of 10.0 μm to 150.0 μm. This powder is suitable usable as an additive.

Powder containing carboxymethylated cellulose nanofibers

This dispersion composition contains a water-based medium and a carboxymethyl cellulose having a carboxymethyl substitution degree of 0.20 or more and a cellulose-I crystallinity index of 50% or more, a water-based medium is easily dispersed even by low mixing power, and has a high viscosity.

Dispersion composition containing carboxymethyl cellulose

The purpose of the present invention is to provide a current collector that has high strength and is easily impregnated with an electrolyte. This current collector is provided with an opening formation portion provided with a plurality of openings, the current collector being characterized in that a protruding portion is formed at the tip of each opening, and only partial locations of the opening formation portion reach an end surface of the current collector and the other locations thereof do not reach the end surface.

Current collector including opening formation portion and battery using same

Deterioration in cycle characteristics and battery swelling are improved. The lithium ion secondary battery of the present invention is characterized in comprising an electrolyte solution comprising a multifunctional monomer comprising two or more epoxy groups and a negative electrode comprising a binder comprising a polymer comprising a monomer unit comprising a functional group selected from the group consisting of &#x2014;OH, &#x2014;OM, &#x2014;COOH, &#x2014;COOM and &#x2014;COOCH, wherein M is a metal element, and n is an integer of 1 to 5.

Lithium ion secondary battery

A carboxymethylated cellulose having a carboxymethyl substitution of no more than 0.50 and a cellulose I type crystallization of at least 50%. Ideally, the anionization is 0.00-1.00 meq/g. The Schopper-Riegler freeness is ideally at least 60.0&#xb0; SR. Ideally the ratio of filtration residue is 0%-30% by mass. The viscosity (30 rpm, 25&#xb0; C.) for an aqueous dispersion having a 1% solid content (w/v) is ideally no more than 10.0 mPa&#xb7;s.

Carboxymethylated cellulose

Provided is a novel manufacturing method whereby a carboxymethylated cellulose nanofiber dispersion having high tarnasparency can be obtained economically. In carboxymethylation of cellulose in the present invention, mercerization is performed in water as the main solvent, after which carboxymethylation is performed in a solvent mixture of water and an organic solvent, By defibrating the resultant carboxymethylated cellulose, a carboxymethylated cellulose nanofiber dispersion having high transparency can be obtained economically.

Method for manufacturing carboxymethylated cellulose nanofiber

Carboxymethylated cellulose nanofibers in which the cellulose type I crystallinity is 60% or higher, the aspect ratio is 350 or lower, and the transmittance of light having a wavelength of 660 nm when the carboxymethylated cellulose nanofibers are made into an aqueous dispersion having a solids fraction of 1% (w/v) is 60% or higher.

One of the objects of the present invention is to suppress a short circuit due to metal deposition in an insulating layer in a secondary battery in which a positive electrode and a negative electrode are disposed to face each other via the insulating layer. The secondary battery comprises a battery element including at least one positive electrodeand at least one negative electrodeand a casing that seals the battery element together with an electrolyte. At least one of the positive electrodeand the negative electrodecomprises a current collector, an active material layer formed on at least one surface of the current collector, and an insulating layerformed on the surface of the active material layer. The electrolyte comprises an electrolyte component and a crosslinked gelling agent. The gelling agent exists at least between the active material layer of the positive electrodeand the active material layer of the negative electrodeand the ratio Rg of the gelling agent to 100% by mass of the electrolyte component in between the active material layer of the positive electrodeand the active material layer of the negative electrodeis 0&#x3c;Rg&#x2264;5% by mass.

Secondary battery and method for manufacturing the same

The present invention provides a novel method for producing carboxymethylated cellulose, the method making it possible to economically obtain a high-transparency cellulose nanofiber dispersion. In the carboxymethylation of cellulose, mercerization is carried out in a solvent comprising mainly water, and then carboxymethylation is carried out in a mixed solvent of water and an organic solvent. A nanofiber dispersion of high-transparency carboxymethylated cellulose can be obtained by defibrating the resulting carboxymethylated cellulose.

Method for producing carboxymethylated cellulose and carboxymethylated cellulose nanofibers

Disclosed is an electrode, comprising: a metal foil; an electrode layer formed on at least one surface of the metal foil; and an insulating layer formed on the electrode layer; wherein boundary portion between the insulating layer and the electrode layer is in a state in which a part of the insulating layer engages into a part of the electrode layer, and Ls/L is 1.25 or more, wherein a reference length of a straight line in a direction in which the metal foil extends is taken as L and a boundary length along boundary between the insulating layer and the electrode layer is taken as Ls.

Electrode and secondary battery

A projection optical system includes: a first optical system and a second optical system disposed in that order from an enlargement side. The second optical system forms an intermediate image of the image, and the first optical system enlarges and projects the intermediate image. The first optical system includes: a first lens group, a first reflecting optical element, and a part of a second lens group, disposed in that order from the enlargement side. The second optical system includes: a remainder of the second lens group, a second reflecting optical element, and a third lens group, disposed in that order from the enlargement side. The second reflecting optical element reflects light output from the third lens group toward the second lens group. The first reflecting optical element reflects light output from the second lens group toward the first lens group.

Projection optical system and projection apparatus

An object of the present invention is to provide a polyimide binder which can be prepared under lower temperature conditions. The binder composition for a secondary battery of the present invention is characterized in comprising a polyamic acid and an aromatic compound comprising an electron donating group and an organic acid group.

Resin composition

A projection optical system that enlarges and projects an image displayed on an image display includes: a first optical system; and a second optical system. The projection optical system is a monofocal lens or a zoom lens. The first optical system and the second optical system are arranged, in order starting with the first optical system, from an enlargement side of the projection optical system. The second optical system forms an intermediate image of the image between the first optical system and the second optical system. The first optical system enlarges and projects the intermediate image. The first optical system includes: a first-A optical system and a first-B optical system in order from the enlargement side; and a reflecting optical element that bends a light path between the first-A optical system and the first-B optical system.

Projection optical system and projection apparatus that enlarge and project an image displayed on a display

Provided is a battery comprising a separator comprising inorganic particles for preventing a short-circuit, wherein the inorganic particles are not removed readily from the separator. This battery is characterized by comprising a separator comprising a base material resin having voids and an inorganic particle having a surface (A) facing the void and a surface (B) in contact with the resin, wherein the length of the surface (A) is 50% or more of the length of the outer periphery of the particle in a cross-sectional SEM photograph of the separator.

Secondary battery

Growing community of inventors

Tokyo, Japan

Kazuhiko Inoue