Tdk Corporation

Toppan Printing Co., Ltd.

Jeol Ltd.

Yoshiyuki Itoh

Kazuo Sato

Koji Takahashi

Isao Fujiwara

Seketsu Fukuzawa

Masaki Takiwaki

Setsuo Sasaki

Tsukasa Satoh

Makoto Tomioka

Taku Yoshiya

Masayoshi Mochizuki

Shugo Tsuda

Takeo Fujimoto

Provided is a phosphonium compound represented by Formula (I): in Formula (I), R, R, and Rare independently from each other, an alkyl group or an aryl group, the alkyl group is a substituted or unsubstituted, linear or branched alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted cyclic alkyl group having 5 to 20 carbon atoms, the aryl group is a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; X is a reactive group having a hydrazide group, a halide group, a pseudohalide group, or a thioester group; and Yis an anion having a total charge of −1, or Yis absence.

Phosphonium compound, reagent kit for derivatization, mass spectrometric method, and method for producing phosphonium compound

A capacitor constituted of a dielectric ceramic material is provided with through holes, with electrodes formed at the two surfaces at which the through holes open. One of the electrodes is secured onto a raised portion of a grounding metal. Conductors which pass through the capacitor and the grounding metal are electrically connected to an electrode opposite the electrode secured onto a raised portion of the grounding metal. Insulating resins fill the spaces around the capacitor. One end surface of an insulating cover is set facing opposite an inner surface of the raised portion of the grounding metal over a gap with an inner insulating resin filling the gap.

High voltage capacitor and magnetron

Method for recording data, and printed body printed by the method, and

Growing community of inventors

Tokyo, Japan

Yoshiyuki Itoh