Nec Corporation

Agc Inc.

Adeka Corporation

Yu Yamaguchi

Yusuke Nagai

Naoki Morimoto

Yasushi Matsumura

Ken-ichiro Hiwatari

Tetsuya Higami

Akiko Tasaki

Kyohei Ochiai

Kenichiro Hiwatari

Haruki Obara

Takuya Kimura

Mitsumasa Homma

Keita Kinoshita

Lanfang Wang

Ken-Ichiro Hiwatari

A method of producing a decellularized transplantation material, wherein the method includes the steps of (a) harvesting a branch-bearing blood vessel from a vertebrate animal (a donor); (b) decellularizing the blood vessel; and (c) adhering, by a protein denaturation treatment, a portion where a branch has been excised to close the vessel. Also, a graft composition consisting of a biocompatible material that contains the decellularized transplantation material.

Method for producing decellularized material for transplantation and graft composition consisting of biocompatible material including said material

The present invention relates to a novel production method of a novel prostaglandin derivative or a pharmaceutically acceptable salt thereof useful as a medicament, and an intermediate therefor. According to the present invention, a production method of a novel prostaglandin derivative or a pharmaceutically acceptable salt thereof including a conversion step from a compound represented by the following formula 3 to a compound represented by the formula 1 can be provided: wherein each symbol is as defined in the DESCRIPTION.

Method for producing prostaglandin derivative

A variable gain amplifying device that improves noise figure and third order intermodulation distortion over a wide range of gain. The device includes n stages (where n is an arbitrary natural number more than 1), each stage containing a variable gain amplifier capable of changing gain in accordance with a respective gain control signal. Through lines for bypassing a respective amplifier are arranged in parallel to the amplifiers. Input stage switches are provided at respective input sides of the variable gain amplifiers to change the output signal to be input to the variable gain amplifier or the through line based on the gain control signal. Output stage switches are provided at respective output sides of the variable gain amplifiers to change the signal to be output from the variable gain amplifier or the through line based on the gain control signal. A control circuit outputs the respective control signals to the stages.

Variable gain amplifying device

Growing community of inventors

Tokyo, Japan

Yu Yamaguchi