Jnc Corporation

Jnc Fibers Corporation

Sofsera Corporation

You Umebayashi

Minoru Miyauchi

Taiju Terakawa

Yasumichi Kogai

Yukinori Kataoka

Karl Kazushige Kawabe

Kazushi Ishida

Akihiro Uchida

Daisuke Nomi

Akiko Shimatani

Shuji Sasaki

Hisashi Hattori

Shimpei Hiramoto

A filtration medium for a filter, having high dust collection efficiency, low pressure loss, a long service life and sufficient processing strength into a filter. A combined fiber nonwoven fabric includes first fibers having a mean fiber diameter of less than 200 nanometers, and second fibers having a mean fiber diameter in the range of 200 to 5000 nanometers, in which basis weight of the combined fiber nonwoven fabric is in the range of 2.1 to 15.0 g/m.

Combined fiber nonwoven fabric, laminate, filtration medium for filter and method thereof

A spinneret () for electrostatic spinning is configured from a structure of an electrically conductive metal material. The structure is provided with a long-axis direction (X), a short-axis direction (Z), and a thickness direction (Y). An inflow port () for a spinning starting material fluid is provided to one surface of the structure. A plurality of protrusions () are formed on another surface of the structure so as to be aligned along the long-axis direction (X). Each of the plurality of protrusion () extends so as to protrude from the structure. The protrusions () have, provided to apexes () thereof, discharge holes () for discharging the starting material fluid. The pitch of the discharge holes () exceeds 1 mm.

Spinneret for electrostatic spinning

To provide a method for producing a porous calcium phosphate body having open micro-pores, by the method for producing the porous calcium phosphate body, in which calcium phosphate is subjected to electro-spinning.

Method for producing porous calcium phosphate body

An object is to provide a method for producing an ever-larger molecular weight collagen-like polypeptide single strand. Another object is to provide a method for controlling a molecular weight of a product to be obtained in desired magnitude upon producing a collagen-like polypeptide single strand. A solution is a method for producing a polypeptide including a step for allowing a condensation reaction of peptide oligomers represented by any one of formulas (1) to (3) (SEQ ID No:1 to SEQ ID No:3), wherein the condensation reaction is carried out in an aqueous solvent containing a phosphate ion in the range of 0 M to less than 0.01 M in the presence of a condensing agent, or a condensing agent and a condensing auxiliary:H-(Pro-Y-Gly)-OH&#x2003;&#x2003;(1);H-(Y-Gly-Pro)-OH&#x2003;&#x2003;(2); andH-(Gly-Pro-Y)-OH&#x2003;&#x2003;(3);wherein, in formulas (1) to (3), Y is hydroxyproline or proline, and n is an integer from 1 to 10.

Method for producing collagen-like polypeptide

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Shiga, Japan

You Umebayashi