Kayoko AOYAMA

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Sapporo-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transmission lubricating oil composition
- Patent number 10,889,779
- Issue date Jan 12, 2021
- Idemitsu Kosan Co., Ltd.
- Kayoko Aoyama
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Electric vehicle or hybrid vehicle lubricating oil composition
- Patent number 10,815,447
- Issue date Oct 27, 2020
- Idemitsu Kosan Co., Ltd.
- Kayoko Aoyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
TRANSMISSION LUBRICATING OIL COMPOSITION
- Publication number 20180100119
- Publication date Apr 12, 2018
- IDEMITSU KOSAN CO., LTD.
- Kayoko AOYAMA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
ELECTRIC VEHICLE OR HYBRID VEHICLE LUBRICATING OIL COMPOSITION
- Publication number 20180079990
- Publication date Mar 22, 2018
- Idemitsu Kosan Co., Ltd.
- Kayoko AOYAMA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...