专利检索 ap:("TAIYO YUDEN CO., LTD.") AND inv:"Ryo Ito" 第 1 页

1.

发明授权
Piezoelectric element with lithium manganate-containing ceramic layers and silver-containing internal electrodes 有权

公开(公告)号：US12010921B2

公开(公告)日：2024-06-11

申请号：US17202115

申请日：2021-03-15

申请人： TAIYO YUDEN CO., LTD.

发明人： Ryo Ito , Takayuki Goto

IPC分类号： H10N30/853 , C04B35/495 , C04B35/626 , C04B35/634 , C04B35/64 , C04B37/00 , H10N30/053 , H10N30/50 , H10N30/87

CPC分类号： H10N30/8536 , C04B35/495 , C04B35/6261 , C04B35/6342 , C04B35/64 , C04B37/003 , H10N30/053 , H10N30/50 , H10N30/871 , H10N30/877 , C04B2235/3255 , C04B2235/3268 , C04B2235/3418 , C04B2235/442 , C04B2235/6025 , C04B2237/125 , C04B2237/348 , C04B2237/68

摘要： A multilayer piezoelectric element using an alkaline niobate-based piezoelectric ceramic, which can inhibit its reliability from dropping while lowering production cost, is characterized by forming internal electrodes (10) with a metal whose silver content is 80 percent by mass or higher, and also constituting piezoelectric ceramic layers (40) with a piezoelectric ceramic whose primary component is an alkaline niobate having a perovskite structure and which also contains a lithium manganate.

2.

发明授权
Multilayer piezoelectric ceramic and method for manufacturing same, multilayer piezoelectric element, as well as piezoelectric vibration apparatus 有权

公开(公告)号：US11889767B2

公开(公告)日：2024-01-30

申请号：US16814804

申请日：2020-03-10

申请人： TAIYO YUDEN CO., LTD.

发明人： Gouki Watanabe , Ryo Ito , Takayuki Goto , Hiroyuki Shimizu , Sumiaki Kishimoto

IPC分类号： H01L41/187 , H10N30/853 , C04B35/495 , C04B37/00 , H10N30/20 , H10N30/50 , H10N30/053 , H10N30/87

CPC分类号： H10N30/8542 , C04B35/495 , C04B37/001 , H10N30/053 , H10N30/20 , H10N30/50 , H10N30/871 , H10N30/877 , C04B2235/3255 , C04B2235/768 , C04B2235/786 , C04B2237/345

摘要： A multilayer piezoelectric ceramic is such that: its piezoelectric ceramic layers do not contain lead as a constituent element, and have a perovskite compound expressed by the composition formula LixNayK1-x-yNbO3 (where 0.02

3.

发明授权
Multilayer piezoelectric ceramic and method for manufacturing same, multilayer piezoelectric element, as well as piezoelectric vibration device 有权

公开(公告)号：US11631801B2

公开(公告)日：2023-04-18

申请号：US16833251

申请日：2020-03-27

申请人： TAIYO YUDEN CO., LTD.

发明人： Tomohiro Harada , Takayuki Goto , Ryo Ito , Hiroyuki Shimizu , Sumiaki Kishimoto

IPC分类号： H01L41/187 , H01L41/277 , H01L41/083 , H01L41/047

摘要： A multilayer piezoelectric ceramic is constituted by: piezoelectric ceramic layers which do not contain lead as a constituent element, have a perovskite compound expressed by the composition formula LixNayK1−x−yNbO3 (where 0.02