Kabushiki Kaisha Toshiba

Norihiko Tanaka

Tsuyoshi Kobayashi

Tomio Ono

Hajime Mori

Yoshinori Katayama

Motoji Tsubota

Yuuji Saito

Tomonori Abe

According to one embodiment, an ultrasonic probe includes a first member and a first vibrating element. The first member includes at least one selected from the group consisting of metal and ceramic. The first vibrating element includes a first electrode, a piezoelectric layer provided between the first electrode and the first member, and a second electrode provided between the piezoelectric layer and the first member and being in contact with the first member.

Ultrasonic probe and ultrasonic inspection device

A jet pump beam is made of improved heat-treated precipitation-hardened nickel base alloy excellent in anti-stress corrosion cracking properties and high-temperature strength, and having high ductility and a high elastic modulus. A jet pump beammade of improved heat-treated nickel base alloy is produced by preparing a precipitation-strengthened nickel base alloy material having a component composition containing by mass %, Ni: 50.0% to 55.0%, Cr: 17.0% to 21.0%, Nb+Ta: 4.75% to 5.50%, Mo: 2.8% to 3.3%, Ti: 0.65% to 1.15%, Al: 0.2% to 0.8%, C: 0.08% or less, Mn: 0.35% or less, Si: 0.35% or less, S: 0.015% or less, P: 0.03% or less, Cu: 0.30% or less, B: 0.006% or less, and Co: 1.0% or less, and Fe and inevitable impurities constituting a remaining part, subjecting the nickel base alloy material to solution heat treatment at a temperature of 1010&#xb0; C. to 1090&#xb0; C., and subjecting the nickel base alloy material to age-hardening heat treatment at a temperature of 694&#xb0; C. to 714&#xb0; C. for 5 to 7 hours after the solution heat treatment.

Jet pump beam and method for producing the same

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Yokohama, Japan

Norihiko Tanaka