Seal manufacturer Valqua’s first quarter (April-June 2023) results showed sales of 15.48 billion yen ($106.95 million), up 8.6% year-on-year; operating income of 2.0 billion yen, down 2.2%; ordinary income of 2.11 billion yen, down 4.1%; and net income of 1.38 billion yen, down 7.2%. By segment, the sealing products business posted sales of 9.81 billion yen, up 2.4%, and operating…